TCPEL MS Series · Premium Industrial Solution

Double Shaft Shredder For Biomass Pellet Production

Q: What is a double shaft shredder and how does it differ from a single-shaft type?

A double shaft shredder, also called a dual shaft or twin shaft shredder, is a type of industrial shredder mounted with two parallel shafts, each equipped with hook alloy blades, which defend a dual sheering action of the feedstock as the shafts rotate in opposite directions at relatively low rpm and high torque. Used alone or in combination with a waste shredder or a single shaft shredder, dual shaft shredding equipment is the most commonly specified technology type for biomass material reduction in a process stream. For primary reduction of high volume feedstock arriving in large pieces-wood logs, pallets and roll goods-both have main advantages over single shaft shredders 200mm diameter in that dual shaft machines can process a higher throughput and tolerate greater contaminant loadings when the feedstock’s physical properties are variable.

Q: How does the MS Series tearing mechanism work?

Two heavy-duty hexagon shafts rotate to oppose at 5 to 32 rpm. Hook alloy blades affixed to each shaft grip the incoming biomass and force an exert shear load between two parallel stacks of blade sets on opposite shafts. Hook geometry shape prevents blocky particles from running off the top of the shaft pairs and dragging during the shear process, while the low rotational speed keeps impact loading relatively low on the blades and minimizes damage to the material.

Q: What biomass materials can the MS Series process?

MS Series processes woody debris and offcuts, PL billets and pallets with embedded nails with optional magnetic separator, rice straw, wheat straw, corn stalks, palm fiber, sugar cane bagasse, forestry residues, and RDF biomass. Engineering targets include size reduction on large feedstock for pellet plants, biogas plants and biofuels production.

Q: Which MS model fits a 2 t/h wood pellet plant?

2 t/h pellet output options, MS800 (requiring 2 to 5 t/h on biomass) is generally the starting point, as it is sized to allow for moisture fluctuations, plus oversized log offcuts. MS800 is supplied as standard with 30 kW 2 motors, a 40Cr six sided shaft, and a 750 L hopper. A free sizing check, on basis of your feedstock profile, is possible using the TCPEL application engineering team.

Q: How does the low-speed high-torque design reduce energy consumption and noise?

A low speed of rotation produces motor input work as torque rather than impact velocity. Using high torque to tear biomass consumes less energy per m 3 of feedstock than using high impact velocity to tear biomass where some of the input work is dissipated as heat, dust, and noise. The MS Series 5 to 32 rpm working range is designed for this torque effective regime.

Q: What blade material does TCPEL use and how often must blades be replaced?

MS Series blades are hardened-forged on M6V or Cr12MoV alloy tool steel and heat-treated to HRC54-60. Service interval is solely limited by feedstock abrasion: fresh logs of wood and straw bales have nearly ten-fold longer intervals between blades rotations than nail-coffin pallets or stony forestry residuals, and easy wear-one-step visual check during the scheduled downtimes reveals when the blades require rotation. Modular blade mounting provides individual blade rotation/replacements without have to dismantle of the complete shaft assembly, so planned down time is in hours.

Q: Is the MS Series CE-compliant for EU import?

MS Series is designed to the standards as specified in all current European Union machinery directives and standards, Machinery Directive 2006/42/EC, Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU, and each unit will carry a Declaration of Conformity as well as the corresponding Technical Construction File reference for any EU purchases and customer orders. EU purchasers should consult their Notified Body to determine whether this configuration requires further documentation outside the normal CE Group.

Q: Can the MS Series shred wood pallets with embedded nails?

Yes. Blade like TCPEL's two hook types will hold both NRP and pallet wood and tear it up without grabbing the nail bed. For a continuous recycling operation TCPEL recommends that the customer specify an inline magnetic separator on the discharge conveyor to screen out nails and ferrous contaminants prior to the downstream hammer mill or pellet mill.

Q: What is the typical lead time, warranty, and aftersales coverage?

MS Series standard models are shipped within weeks (subject to current production schedule and final destination when order is confirmed). CustomizedMS Series, as well as complete pellet lines, are subject to longer shipment lead times. TCPEL tracks and archive customer data for all export shipments to fulfill spares, remote technical support, and field service requirements into 60+ export countries. Warranty/guarantee details are included in the signed sales contract.

TCPEL MS Series — Engineered For Continuous 24/7 Industrial Operation

TCPEL MS Series double shaft shredder is the ideal step before size reduction into a pellet plant, bio fuel processing line, forestry recycling and waste management. The MS range of seven different models ranges from hourly capacities of 0.5ton/hr to 20tons/hr, fitted with M6V or Cr12MoV alloy blades and twin industrial gearboxes, through to a CE orientated design able to operate continuously 24/7 in an industrial environment.

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MS-SERIES · EQUIPMENT Double Shaft Shredder

Operational 24/7 Twin Industrial Gearboxes

Models

Capacity Range

0.5–20 t/h

Blade Hardness

HRC 54–60

Export Countries

60 +

MS Series · Engineering Brief № 01 / Biomass Primary Reduction

The Biomass Feedstock Bottleneck — How The MS Series Solves It

All wood pellet plants and biofuel prep lines have one critical point of failure, one single choke point where they hemorrhage productivity and money. That choke point is the in-feed on the hammer mill — the long pallets stop the chips from entering; the straw bales grab ahold of the grind shafts; the large log off-cuts bring the line to a halt, and you remove the chamber and change the very expensive Jones Hammers.

50–150mm Uniform Pellet-Mill-Ready Output

2× shafts Counter-Rotating · Low RPM · High Torque

7models MS Series Field-Proven Globally

Three Pain Points Dominate Biomass Primary Size Reduction

FIG · 01 / Feedstock GeometryTCPEL MS Series

Unbalanced Feedstock Geometry

Geometry Variance · Feed Bridging

FIG · 02 / Feed ContaminantsTCPEL MS Series

Contaminants Within The Feed

Metal · Stone · Wire Strap

FIG · 03 / Power & DustTCPEL MS Series

Power Spikes And Dust Production

kWh / Ton · Dust Load

A Double Shaft Shredder Addresses These Issues Up Front

Two counter-rotating shafts with hook-type alloy blades break and shear the biomass (cutting, tearing) at low RPM and high torque, generating a uniform 50–150 mm output that can be fed straight into a hammer mill or pellet plant. Design of the MS Series is aimed at this first size reduction step — not as a standard plastic or metal shredder would be outfitted for wood, but as the dedicated primary reducer for biomass.

Hook-Type Alloy Blades

Engineered For Wood & Fibrous Stock — Aggressive Tear Profile

Low RPM · High Torque Profile

Tolerates Tramp Metal — Resists Jamming On Hard Inclusions

Uniform 50–150 mm Output

Pellet-Mill Ready — No Re-Sizing Stage Required Downstream

Input Mixed Biomass

Primary Reduction MS Series · Double Shaft

Output 50–150 mm Uniform

MS · Schematic Rev. 24 / EN

Output50–150 mm Uniform

Shafts2 · Counter-Rotating

Drive ProfileLow RPM · High Torque

Blade TypeHook-Type Alloy

ApplicationDedicated Biomass Primary

Plant Operators View The Benefits Of A Stable Feed Line As

↓

Less Energy Per Ton Of Finished Pellet

Energy · kWh / Ton

↑

Longer Hammer Mill & Pellet Die Service Life

Wear · Service Interval

↓

Less Unplanned Downtime On The Line

OEE · Availability

No. 05 / Selection Guide

Guide to seven of the MS models below — their engineering specifics, real-life in the field of material compatibility, and the shell we at TCPEL create for the buyer globally to purchase the correct machine for global project requirements.

Buyer roles covered in this guide: Engineering P.O.O

Request MS Series Sizing →

MS Series Model Selection & Decision Matrix

MS Series Double Shaft Shredder Lineup — 7 Models, 0.5–20 t/h Capacity

TCPEL manufactures 7 seven MS Series double shaft shredder models that match the throughput needs of any biomass pellet plant from pilot line (0.5 t/h) to large industrial line (20 t/h). All models feature the same high-torque/low-sped tearing principle and 6-sided shaft design, with size parameters adjusted to trip, blade diameter, motor strength, gear box primary buyer: Engineering · secondary: Procurement for RFQ .

Tap A Model To View Full Engineering Specifications

Capacity subject to material density and moisture content. All 7 models share the same 6-sided shaft design and twin industrial gear box architecture.

MS Series · Pilot Line MS500

Capacity 0.5–1.5t/h

Chamber Width

500mm

Blade Diameter

270–300mm

Blade Thickness

20 / 30mm

Motor Power

15kW

~20 HP equivalent

Rotation Speed

13–18rpm

Hopper Volume

550L

Machine Dimensions (L × W × H)

2060 × 1600 × 1840mm

Twin Gear Box

Standard

Duty cycle rated continuous

MS Series · Small LineMS600

Capacity1–3t/h

Chamber Width

600mm

Blade Diameter

270–300mm

Blade Thickness

20 / 30mm

Motor Power

18.5kW

~25 HP equivalent

Rotation Speed

9–32rpm

Hopper Volume

650L

Machine Dimensions (L × W × H)

2170 × 1600 × 1840mm

Twin Gear Box

Standard

Duty cycle rated continuous

MS Series · Medium LineMS800

Capacity2–5t/h

Chamber Width

800mm

Blade Diameter

270–450mm

Blade Thickness

30mm

Motor Power

30 × 2kW

~80 HP total

Rotation Speed

10–32rpm

Hopper Volume

750L

Machine Dimensions (L × W × H)

2700 × 1300 × 1850mm

Twin Gear Box

Standard

Duty cycle rated continuous

MS Series · Industrial LineMS1000

Capacity4–8t/h

Chamber Width

1000mm

Blade Diameter

320–520mm

Blade Thickness

30 / 40mm

Motor Power

37 × 2kW

~100 HP total

Rotation Speed

7–32rpm

Hopper Volume

1130L

Machine Dimensions (L × W × H)

3300 × 1900 × 2200mm

Twin Gear Box

Standard

Duty cycle rated continuous

MS Series · Industrial+ LineMS1200

Capacity6–10t/h

Chamber Width

1200mm

Blade Diameter

320–520mm

Blade Thickness

40mm

Motor Power

55 × 2kW

~150 HP total

Rotation Speed

7–32rpm

Hopper Volume

1360L

Machine Dimensions (L × W × H)

3600 × 2000 × 2200mm

Twin Gear Box

Standard

Duty cycle rated continuous

MS Series · Large LineMS1400

Capacity8–12t/h

Chamber Width

1400mm

Blade Diameter

450mm

Blade Thickness

50mm

Motor Power

75 × 2kW

~200 HP total

Rotation Speed

6–15rpm

Hopper Volume

2000L

Machine Dimensions (L × W × H)

4400 × 2000 × 2400mm

Twin Gear Box

Standard

Duty cycle rated continuous

MS Series · Extra Large LineMS1600

Capacity10–20t/h

Chamber Width

1600mm

Blade Diameter

450–800mm

Blade Thickness

50 / 75mm

Motor Power

90 × 2kW

~240 HP total

Rotation Speed

5–14rpm

Hopper Volume

3000L

Machine Dimensions (L × W × H)

5200 × 2210 × 2600mm

Twin Gear Box

Standard

Duty cycle rated continuous

Decision Matrix — Material × Required Throughput → Recommended Model

Pellet plant capacity. Capacity of a pellet plant is seldom found to be a textbook value. Use the matrix below to match your actual biomass material to the most appropriate MS model. Capacity figures are based on a common biomass moisture content; oversized or excessively wet feeds may shift you to a bigger model to achieve rated capacity.

Required Throughput

Wood Logs / Offcuts

Wood Pallets

Straw / Corn Stalk

Bagasse / Palm Fiber

Forestry Residues / RDF

0.5–1.5t/h

Pilot

MS500

1–3t/h

Small

MS600

2–5t/h

Medium

MS800

4–8t/h

Industrial

MS1000

6–10t/h

Industrial+

MS1200

8–12t/h

Large

MS1400

10–20t/h

Extra Large

MS1600

All models come standard with PLC automatic control, overload auto-reverse and two industrial gear boxes duty cycle rated continuous. Adjusts for desired output particle size of 50 to 150mm to fit the in-feed window of your Hammermill or Pellet Mill.

PLC Automatic Control Programmable Logic

Overload Auto-Reverse Jam Protection

Two Industrial Gear Boxes Continuous Duty Rated

Output 50–150 mm Hammermill / Pellet Mill Ready

Need Help Sizing For Your Specific Feedstock?

Download the MS Series Sizing Guide (PDF) — a one-page decision tree mapping biomass material, moisture, and pellet plant capacity to a recommended MS model.

Download Sizing Guide

Engineering Highlights · MS Series № 06 / Industrial-Grade Performance

Engineering Highlights — Why MS Series Delivers Industrial-Grade Performance

Uniquely, generic shredders carry out biomass primary reduction for one principle — what is provided to them is general waste streams, not the particular abrasion, fiber length and moisture content of pallets, logs and straw. Every engineering decision to the MS Series was made solely to overcome one genuine biomass failure mode encountered over thousands of field sites in 60+ countries. (Buyer role: Engineering.)

Core Operating Principle

Low-Speed High-Torque Tearing

MS Series shafts operate at 5 to 32 rpm for different varieties. These blades operate at lower speed and with dual industrial gearbox torque, they tear fibrous biomass rather than crush them. The benefits are visible in terms of: lower dusts, lower noise level and increased blade life vis-à-vis high-speed cutting systems.

5–32 RPM Twin Gearbox Torque Lower Dust · Lower Noise Longer Blade Life

No.01 · Tearing Mechanism MS Series low-speed high-torque tearing principle — counter-rotating dual shafts at 5–32 RPM with hook-type alloy blades

M6V / Cr12MoV Alloy Blades, HRC54–60 Hardness

Blade material is the single largest operating cost in a biomass shredder. MS Series is shipped with the recommended industry standards M6V or Cr12MoV alloy tool steel blades (HRC 54–60). This range of hardness exceeds most other industrial blade manufacturers recommendations for wood, pallet and contaminated feedstock applications. Hook type geometry grabs the heavy material and induces tearing on impact.

HRC 54–60 M6V Tool Steel Cr12MoV Alloy Hook Geometry

№ 02 · Hook Blade Profile M6V / Cr12MoV alloy tool-steel hook-type blade at HRC 54–60 hardness, MS Series industrial shredder

40Cr Quenched & Tempered Hexagonal Shaft

Hexagonal heavy-duty shaft construction first begins with 40Cr alloy steel forged from 40Cr alloy steel, then quenched and tempered to resist fatigue under a continuous high-torque load. Hexagonal shape prevents the blades from slipping in rotation — a common failure mode among round-shaft designs while chopping nail-saturated pallets or stringy bagasse.

40Cr Alloy Q + T Treated Hex Cross-Section No-Slip Blade Stack

№ 03 · Hex Shaft Section 40Cr quenched and tempered hexagonal shaft cross-section — no-slip blade mounting for MS Series double-shaft shredder

PLC Auto-Reverse & Overload Protection

The PLC automatically monitors the motor current and, if it exceeds the safe level while feeding jam-prone material (eg a knotted root, a bundled pallet, a wire-bound bale), the controller reverses the shaft direction to blow the jam, then reverts to forward shredding. This occurs without intervention and without tripping a motor breaker.

Auto-Reverse Current Monitoring Overload Protected No Manual Reset

№ 04 · PLC Reversal Loop PLC automatic reverse and overload protection — current monitoring with auto-reverse loop for MS Series shredder

Dual Industrial Gearbox For 24/7 Duty

Each shaft has its own industrial gearbox (Tecknova, RSP). The drive on each shaft is independent, allowing each shaft to respond to its individual load profile. When a gearbox requires maintenance, neither the whole shredder is stranded: modular blade replacement keep planned downtimes in the order of hours not days.

Tecknova RSP Independent Drives 24/7 Duty Cycle

№ 05 · Twin Gearbox Layout Dual industrial gearbox layout — twin Tecknova / RSP independent drives for MS Series 24/7 continuous duty

№ 07 · Engineering Note

Biomass cutters fall off the blades' edge of life that early as the shaft-to-blade interface drops dead. Hexagonal shafts and the bolted hook blades don't just make market sense — these are the only shaft design capable of withstanding nail-rich pallet feed without slipping angle in the blade stack.

Signed

TCPEL Engineering Team

ALLWIN INTERNATIONAL CO.,LTD
Industrial Shredding Division · 60+ Countries Served

TCPEL · MS QC PASS FIELD VERIFIED

Comparison & TCO · MS Series № 08 / Decision Framework

MS Series Vs Single-Shaft & Hammer Mill — Capacity, Cost, And Compatibility

Frequently, pellet plant operators want to know if one-shaft shredder (which architecture is frequently the one which is used in tire being shredded and all the plastic constituents) or a direct hammer mills feed could substitute a double shaft pre-reducer dedicated one. Honest response: it depends on the material, its throughput goal and downstream wear expense strategy. In the following table 3 three options are compared by the parameters which influence the real total cost of ownership: Primary: Engineering & Operations Secondary: Procurement & Purchasing

Table 3 · Primary Size Reduction Comparison

Performance Dimension 7 Decision Vectors

MS Series Double Shaft

TCPEL · Dedicated Pre-Reducer

Single-Shaft Shredder

Generic Architecture

Direct Hammer Mill Feed

No Pre-Reduction

Dimension · 01Throughput On Bulky Biomass

Optimal

0.5–20 t/h

Model-dependent across MS500 → MS1600

Limited

Lower Throughput

On large, bulky feedstock

Not Suited

Severely Limited

Oversized material blocks the in-feed

Dimension · 02Output Particle Size

50–150 mm Adjustable

Pellet-mill in-feed ready

20–80 mm Fixed

Fixed by screen, typical range

1–5 mm

Pellet-mill ready, but requires upstream reduction first

Dimension · 03Rotation Speed

5–32 RPM

Low-speed · High-torque tearing

60–200 RPM

Generally cutting architecture

1500–3000 RPM

Hammer impact rotation

Dimension · 04Dust And Noise Generation

Low

Tearing action, not impact heat

Medium

Cutting + screening

High

High-speed impact

Dimension · 05Tolerance To Embedded Metal (Nails, Wire)

High

With optional magnetic separator

Medium

Screen damage risk

Low

Hammer damage + pellet die contamination

Dimension · 06Role In Pellet Line

Primary Size Reduction

Upstream of hammer / pellet mill

Precision Sizing

Mid-stream operation

Fine Grinding

Downstream of shredder

Dimension · 07Best-Fit Material

Wood Logs, Pallets, Straw Bales, Bagasse

Heavy, contaminated biomass

Plastic, Film, Light Wood

Light / homogeneous streams

Pre-Shredded Biomass < 50 mm

Already size-reduced upstream

↕ Scroll To View All 7 / 7 Decision Vectors Table 3 · MS Series

Silver-Tier · TCO Card

The Total Cost Argument For A Dedicated Pre-Reducer

MS Series double shaft shredder is not an alternative to your hammer mill — it is an upstream safeguard. In five years, 3 TCO factors dominate biomass pellet plant economics over a five-year horizon: hammer mill hammer life, energy per ton of finished pellet, and unplanned downtime.

№ 01 / TCO Vector

Hammer Mill Hammer Life

Feeding uniform 50–150 mm pre-reduced material into the hammer mill, rather than mixed size bulky biomass, generally reduces hammer impact load and expands hammer service intervals. Field reports in pellet plants around the world always show increased downstream hammer life when a dedicated pre-reducer is plumbed in line.

№ 02 / TCO Vector

Energy Distribution Across The Line

Low speed tearing takes torque, not impact heat. Pre-reduced feedstock enables the hammer mill to operate nearer its design point than pushing open oversized chunks. It also brings down the kWh / ton of finished pellet load across the entire line.

№ 03 / TCO Vector

Pellet Mill Die Life Preservation

Dies are the single most costly wear item in the pellet line. Inorganic contaminants such as embedded nails and stones, prevalent in both pallet and forestry biomass, erase dies in hours unless first cleared upstream. MS Series double shaft architecture, including an inline magnetic separator, screens these contaminants at the primary size reduction step.

№ 09 · TCO Comparison Request

Ready To Compare TCO For Your Specific Plant?

Request a custom comparison — we will run the MS Series numbers against your current setup using your feedstock data.

Request TCO Comparison →

MS Series · Engineering Brief

Biomass Materials & Applications — From Wood Pellet Plants To Forestry Recycling

MS Series double shaft shredder handles every biomass raw material type experienced in industrial pellet production, biofuel production, and agricultural waste recycling. Below matrix summarizes the bi-modal material categories TCPEL has sent units into around the world, (panels indicate typical buyer job functions):

60+ Global Deployment Countries

MSRange Wide Feedstock Adaptability

8+ Biomass Material Categories

Table 4 — Suitable Biomass Materials And Typical Application

Material Category	Specific Examples	Typical Application	Recommended MS Range
Wood Logs & Offcuts	Untreated logs, sawmill offcuts, branches	Wood pellet production plants	MS800–MS1600
Wood Pallets	Pallets with embedded nails, crates, cable drums	Pallet recycling, biofuel preparation	MS1000–MS1400
Rice Straw / Wheat Straw	Baled straw, loose straw, threshing residue	Straw pellet plants, biomass boilers	MS500–MS1200
Corn Stalks	Field-dried corn stalk, stover	Agricultural waste-to-energy	MS600–MS1400
Palm Fiber / Bagasse	Empty palm fruit bunches, sugarcane bagasse	Tropical biomass fuel plants, biogas	MS800–MS1600
Forestry Residues	Bark, stumps, slash, woodchips	Wood waste recycling, mulch production	MS1000–MS1600
RDF Biomass Preprocessing	Mixed organic waste, source-separated biomass, mixed paper-and-card residue	Waste-to-energy facilities, municipal solid waste pre-sorting, industrial waste streams	MS1200–MS1600

MS Series units have been shipped into pellet plants and other biomass processing facilities in more than 60 countries world-wide. Examples include Germany, Finland, Russia, New Zealand, South Korea, Pakistan, India, Bangladesh, Vietnam, Malaysia, and Turkey. In Europe, customers usually combine the MS Series with a drum chipper and rotary dryer, since they produce whole wood pellet lines; in Southeast Asia, production streams are almost always palm fiber, rice straw, or bagasse based, for power/heat generation or conversion.

Recycled wood pallets create the most difficult form of biomass in terms of shredding performance, since nails, staples, and metal bands are commonplace. MS Series blades are engineered with alloy alloy blades that batch in such material with no prior nail removal, and optionally include an inline magnetic separator on the discharge conveyor to remove any ferrous remains before reaching the downstream hammer mill or pellet mill. This is established best industry practice and is intended to safeguard the highly valued wear components in your pellet line.

Integration With TCPEL Biomass Pellet Production Line

Most shredder makers will try to sell you one machine. Since TCPEL designs the entire biomass pellet conversion line, the MS Series double shaft shredder has been engineered to be the first of an eight step process chain. Using all the same brands when defining shredder, hammer mill, dryer, and pellet mill - rather than cobbling together various brands - provides consistent capacity utilization, feeding steps, and stock length, protects both your machine warranty and the integrity of your entire four story workflow process. Zegbrk_0007.

Drum Chipper Raw logs → chips

                MS Double Shaft Shredder
                Primary size reduction
            

Hammer Mill Fine grinding

Rotary Dryer Moisture control

Pellet Mill Densification

Pellet Cooler Stabilization

Pellet Packing Bagging / bulk

Three Integration Values The MS Series Delivers

Loading Consistency For The Hammer Mill

Consistent 50-150 mm output of the MS Series aligns with the typical hammer mill in-feed window. The variation is handled upstream in the shredder, no need to touch each pallet or log for Pre-sort before it gets to your hammer mill.

Line-wide Energy Efficiency

Slow-impact tearing priming torque, not impact energy. Downstream of the shredder, the hammer mill is fed premilled material, normally operating much closer to its intended dimension and power draw setpoint, therefore creating a lower GWhr/ton cost of finished pellet than a hammer mill that is responsible for both Rough Reduction and Fines Grinding.

Fines Milling Wear Profiles Of Downstream Equipment

The most costly wear items in a pellet line are pellet mill rolls, pellet mill dies and hammer mill hammers. A double shaft shredder pre-reducer, optionally combined with a inline ferrous separator, isolates the abrasive contaminants and zeroes out their impact on downstream wear side components. Pellet ring die and hammer mill hammers see clean, sized biomass. The pellet mill ring dies see clean, consistently sized powder.

The single-supplier arrival is also the shortest commissioning run. Instead of having the shredder controls from manufacturer A, the throttle valves from manufacturer B and the dryer touchscreen from manufacturer C, TCPEL is able to ship a line with one set of electrical schematics and one commissioning team.

CE-Oriented Safety & Compliance Design

All MS Series double shaft shredders are built inline with core EU directives regulating industrial shredding machinery entering the EU zone. Points of reference for the design matrix include the following harmonized directives:(RFQ buyer role: Procurement, secondary for engineering/standards applicability).

Machinery Safety

Directive 2006/42/EC

Power Safety

Low Voltage Directive 2014/35/EU

Electromagnetic

EMC Directive 2014/30/EU

Built-In Safety Features

Emergency Shutdown Design

Operator-accessible rated category 0 E-start on every MS Series machine.

Electrical Overload Detection

Continuous motor current detection through the PLC; overload invokes automatic reverse, avoiding motor damage.

Reverse Cycle On Obstruction

Program-reduced reverse Cycle – no operator override required.

Sealed Transmission Systems

Completely sealed gear housings avoiding exposed moving parts within the operator zone.

Silent And Clean Operation

Low rotational speeds cut down impact and dispersive noise versus high speed shredders.

Industrial Safety Guarding (CE Optional)

Integrated safety enclosure with interlocked access doors available as a CE bundle upgrade.

Importing into the EU? Request the full compliance package — Declaration of Conformity, Technical Construction File reference, and safety circuit drawings for the MS model in your RFQ.

Procurement Guide — Capacity-Tier Pricing, Lead Time, And Aftersales Network

A purchase of an industrial shredder, in the biomass category, takes several months and touches the department responsible for engineering, procurement, and expenditure control. Below are the common buyer questions answered by TCPEL prior to submission of a PO. (Buyer roles: Procurement + Operations for budget approval)

Pricing Factors Framework

MS Series price is adapted to the sizing tier and configuration. Dimensions listed here determine the final price on your special RFQ quotation from TCPEL, not a generic list price of the MS Series.

Sizing Category

Entry level (MS500-MS600, 0.5-3 ton/hr), mid level (MS800-MS1200, 2-10 ton/hr), large category (MS1400-MS1600, 8-20 ton/hr). Capex scales proportionally with chamber width, blade diameter, motor power, and gearbox sizing.

Blade Specification

Standard M6V or Cr12MoV alloy, optionally upgraded to wear resistant blade if feedstock is very high-abrasion (bagasse, palm fiber, RDF).

Optional Add-Ons

Hydraulically operated feeding system, VFD, automatic lubrication system, customized size hopper, in-line magnetic separator if recycling pallets.

CE Package Level

Standard CE-oriented design or full safety-guarded CE layout with interlocked enclosure.

Pellet Line Scope

Single shredder of integrated supply with drum chipper, hammer mill, rotary dryer, pellet mill, cooler, and packer.

Manufacturer Background

Operates as ALLWIN INTERNATIONAL CO.,LTD, a Chinese biomass machinery manufacturer formed in 2020. Factory occupies c20,000 m² with more than 100 workshop staff and a dedicated design and engineering team. Factory is located on East Side, Second Factory, Zhangjia Industrial Park, Mingshui Street, Zhangqiu District, Jinan City, Shandong Province, China 250203. MS Series is one of eight different families of biomass production machinery, which represent the complete line from drum chipper, screw feeder, hammer mill, rotary dryer, pellet mill, and packer.

Lead Time And Aftersales

Standard Models

MS Series lead times begin in weeks from order confirmation (ex-works) depending on current manufacturing schedule.

Customized Builds

Lead times are several weeks longer for non-standard hopper sizes, custom blade configuration, or bundling of complete pellet line package.

Global Aftersales

Proven aftersales team provides rapid worldwide fulfillment of spare parts for 60+ export markets. Customer files are accumulated for every shipment, which assists with fast spare parts and technical support service.

Interactive Engineering Tools & Resources

Access our suite of professional engineering utilities designed for the MS Series Double Shaft Shredder. Whether you are sizing equipment for your specific facility, calculating long-term operational costs, or verifying regulatory compliance, these tools provide immediate, data-driven insights to support your procurement process.

MS Series Sizing Selector

Determine the optimal MS Series model based on your required throughput, material type, and dimensional constraints.

Launch Selector

TCO Comparison Calculator

Analyze and compare the 5-year Total Cost of Ownership between the MS Series and traditional direct-feed methods.

Calculate TCO

CE Compliance Self-Check

Verify safety standards and regulatory compliance requirements for importing and operating the MS Series in the EU.

Start Self-Check

Frequently Asked Questions

What Is A Double Shaft Shredder And How Does It Differ From A Single-Shaft Type?

A double shaft shredder, also called a dual shaft or twin shaft shredder, is a type of industrial shredder mounted with two parallel shafts, each equipped with hook alloy blades, which defend a dual sheering action of the feedstock as the shafts rotate in opposite directions at relatively low rpm and high torque. Used alone or in combination with a waste shredder or a single shaft shredder, dual shaft shredding equipment is the most commonly specified technology type for biomass material reduction in a process stream. For primary reduction of high volume feedstock arriving in large pieces-wood logs, pallets and roll goods-both have main advantages over single shaft shredders 200mm diameter in that dual shaft machines can process a higher throughput and tolerate greater contaminant loadings when the feedstock’s physical properties are variable.

How Does The MS Series Tearing Mechanism Work?

Two heavy-duty hexagon shafts rotate to oppose at 5 to 32 rpm. Hook alloy blades affixed to each shaft grip the incoming biomass and force an exert shear load between two parallel stacks of blade sets on opposite shafts. Hook geometry shape prevents blocky particles from running off the top of the shaft pairs and dragging during the shear process, while the low rotational speed keeps impact loading relatively low on the blades and minimizes damage to the material.

What Biomass Materials Can The MS Series Process?

MS Series processes woody debris and offcuts, PL billets and pallets with embedded nails with optional magnetic separator, rice straw, wheat straw, corn stalks, palm fiber, sugar cane bagasse, forestry residues, and RDF biomass. Engineering targets include size reduction on large feedstock for pellet plants, biogas plants and biofuels production.

Which MS Model Fits A 2 t/h Wood Pellet Plant?

2 t/h pellet output options, MS800 (requiring 2 to 5 t/h on biomass) is generally the starting point, as it is sized to allow for moisture fluctuations, plus oversized log offcuts. MS800 is supplied as standard with 30 kW 2 motors, a 40Cr six sided shaft, and a 750 L hopper. A free sizing check, on basis of your feedstock profile, is possible using the TCPEL application engineering team.

How Does The Low-Speed High-Torque Design Reduce Energy Consumption And Noise?

A low speed of rotation produces motor input work as torque rather than impact velocity. Using high torque to tear biomass consumes less energy per m 3 of feedstock than using high impact velocity to tear biomass where some of the input work is dissipated as heat, dust, and noise. The MS Series 5 to 32 rpm working range is designed for this torque effective regime.

What Blade Material Does TCPEL Use And How Often Must Blades Be Replaced?

MS Series blades are hardened-forged on M6V or Cr12MoV alloy tool steel and heat-treated to HRC54-60. Service interval is solely limited by feedstock abrasion: fresh logs of wood and straw bales have nearly ten-fold longer intervals between blades rotations than nail-coffin pallets or stony forestry residuals, and easy wear-one-step visual check during the scheduled downtimes reveals when the blades require rotation. Modular blade mounting provides individual blade rotation/replacements without have to dismantle of the complete shaft assembly, so planned down time is in hours.

Is The MS Series CE-Compliant For EU Import?

MS Series is designed to the standards as specified in all current European Union machinery directives and standards, Machinery Directive 2006/42/EC, Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU, and each unit will carry a Declaration of Conformity as well as the corresponding Technical Construction File reference for any EU purchases and customer orders. EU purchasers should consult their Notified Body to determine whether this configuration requires further documentation outside the normal CE Group.

Can The MS Series Shred Wood Pallets With Embedded Nails?

Yes. Blade like TCPEL's two hook types will hold both NRP and pallet wood and tear it up without grabbing the nail bed. For a continuous recycling operation TCPEL recommends that the customer specify an inline magnetic separator on the discharge conveyor to screen out nails and ferrous contaminants prior to the downstream hammer mill or pellet mill.

What Is The Typical Lead Time, Warranty, And Aftersales Coverage?

MS Series standard models are shipped within weeks (subject to current production schedule and final destination when order is confirmed). CustomizedMS Series, as well as complete pellet lines, are subject to longer shipment lead times. TCPEL tracks and archive customer data for all export shipments to fulfill spares, remote technical support, and field service requirements into 60+ export countries. Warranty/guarantee details are included in the signed sales contract.

Double Shaft Shredder For Biomass Pellet Production

TCPEL MS Series — Engineered For Continuous 24/7 Industrial Operation

The Biomass Feedstock Bottleneck — How The MS Series Solves It

Three Pain Points Dominate Biomass Primary Size Reduction

Unbalanced Feedstock Geometry

Contaminants Within The Feed

Power Spikes And Dust Production

A Double Shaft Shredder Addresses These Issues Up Front

Plant Operators View The Benefits Of A Stable Feed Line As

MS Series Double Shaft Shredder Lineup — 7 Models, 0.5–20 t/h Capacity

Tap A Model To View Full Engineering Specifications

Decision Matrix — Material × Required Throughput → Recommended Model

Engineering Highlights — Why MS Series Delivers Industrial-Grade Performance

Low-Speed High-Torque Tearing

M6V / Cr12MoV Alloy Blades, HRC54–60 Hardness

40Cr Quenched & Tempered Hexagonal Shaft

PLC Auto-Reverse & Overload Protection

Dual Industrial Gearbox For 24/7 Duty

MS Series Vs Single-Shaft & Hammer Mill — Capacity, Cost, And Compatibility

The Total Cost Argument For A Dedicated Pre-Reducer

Integration With TCPEL Biomass Pellet Production Line

Three Integration Values The MS Series Delivers

Loading Consistency For The Hammer Mill

Line-wide Energy Efficiency

Fines Milling Wear Profiles Of Downstream Equipment

Procurement Guide — Capacity-Tier Pricing, Lead Time, And Aftersales Network

Pricing Factors Framework

Manufacturer Background

Lead Time And Aftersales

Interactive Engineering Tools & Resources

MS Series Sizing Selector

TCO Comparison Calculator

CE Compliance Self-Check

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