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Specialist manufacturers of Pinned Products

Tel: +44 (0)1575 570 203


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Recycling Industry - Pinned Products

STEWARTS Pinned Products are widely used within the recycling industry and are custom designed and manufactured to meet our customer's machinery requirements.

Bottle and Can recycling perforator systems


Pinned products are used within the Bottle and Can recycling process to perforate, flatten and compress plastic bottles and aluminium cans, allowing them to be easily compacted into bails, thus making the transport process simpler, more efficient and more cost effective.

Pinned Products

Pinned Opening and Cleaning Roller Pinned Spiral Chute Feed Roller Pinned Taker-In Roller Pinned Stationary Carding Flats Pinned Fixed Carding Flats Pinned Open End Combing Roller Metalag Aluminium Stave Beechwood Stave Laminated Stave Steel and Aluminium Face Stave Picker Roller Metering Roller Metering Stave Conveyor Assemblies Hot Needle Perforation Cold Needle Perforation Spiked Roller Spike Roller Blowroom Roller Licker-In Roller Pinned Segment Needle Segment Spike Plate Carding Drum Segment Pinned Bar Undersegment Pins Carding Pins Textile Pins

Paper Recycling Pinned Rollers


Pinned Rollers are used within paper recycling machines to pulverize the paper into fine particles ready for recycling.

Pinned Aluminium and Wooden Lags for Textile Recycling Machinery


From Interlocking "Tongue and Groove" Lags, to Flat Lags with Scallops, we have now made Pinned Lags for the Textile Industry for over 139 years. Over that period we have established the designs for most of the Original Equipment Manufacturers (OEMs) Lags which use our harder wearing and tempered pins for long life and excellent opening.


Unique Interlocking Design


The unique STEWARTS design of interlocking aluminium alloy METALAG stave has firmly established itself in the World's fibre industries with its extended life and strength. Many hundreds of thousands have now been supplied to well over 60 countries over the past 60 years with their accuracy and long life well known. Indeed some of the original staves are still running after many repinnings. For high density pinning, N.I.F. (non-interference fit) METALAG staves have now demonstrated their accuracy and reliability.


Interlocking Staves


The patented interlock between our STEWARTS METALAG staves means that adjoining staves contribute to the total strength of the assembly, and greatly reduces the chance of a catastrophic failure during a card smash event.


Fewer Screw holes


Fewer retaining screws are needed because the strength of the aluminium alloy together with the patented interlocking design is greater than standard staves. This reduces gaps between the pins, producing better carding and easier maintenance. In many cases the staves and lags can be made double the width, further reducing the problem of gaps. However the screw holes are still positioned so that the METALAG staves can be fitted in the place of wooden staves without modification, and it is even possible to mix complete rounds of conventional and METALAG staves.


Points to note


  • Light weight, high strength aluminium alloy construction
  • Interlocking fit, virtually smash proof
  • Fewer screw holes, easier fitting and removal
  • Fire resistant, unaffected by Humidity
  • Carbon Steel heat treated pins, give extra-long life
  • Proven over 60 years in 60 countries
  • Extended life gives excellent value for money
Stewart Pinned Products Logo

UK Division

Marywell Works

Marywell Brae

Kirriemuir, Angus

Scotland UK



Tel: +44 (0)1575 570 203

China Division

Juilong Industrail Park,

Juilong Town, Zhongmou,

Zhengzhou City,

Henan Province,

China, 451482


Tel: +86 371 6226 5807

A division of the original Wm R STEWART & SONS (HACKLEMAKERS) Ltd founded in 1874 in Scotland where we still develop and design the pinned products of tomorrow, today!

Precision Pinned Product Engineering

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