Beaver 3S Industrial Manual Chain Blocks With Overload Protection (3m Standard Lift)

Unit Description: Each
Data Sheet
  • Description
  • Warranty, Return & Exchange Policy
  • Shipping Info

Beaver 3S industrial chain blocks with overload protection are designed for use on monorails, jibs fixed installations and for maintenance use. These chain blocks or hoists are to be used for vertical lifts only. If they are side loaded or used horizontally, jamming of the loader chain and damage to the blocks may occur. The Beaver 3S industrial chain blocks  features a double pawl and double roller guide for enhanced performance and reliability, as well as a unique curling design which enables the hand chain to successfully feed directly into the wheel sprocket.

Product Features:

  • Full Body Steel cast construction, gear case and reinforced side covers are impact resistant
  • Overload protection for added safety
  • Unique design on top and bottom hooks with ball bearings and safety catches
  • Beaver 'ID' plates and rivets are supplied in stainless steel (a non-conductive material) in order to avoid dangerous sparking,
  • Comprehensive range of spare parts are available
  • Colour coded to match international Lifting standards
  • Every 3S Chain Block Steel Pro 250kg is identified with its own serial number that relates directly to a test certificate


  • Heavy duty steel
  • G80 Calibrated load chain
  • Robust cast steel housing
  • Ball bearings in top & bottom hooks


  • Mining
  • Rigging and Construction
  • General Purpose
  • Industrial use
  • Mechanical

Approved Standards:

  • Complies to AS/NZS 1418.2
  • Grade 80 Calibrated Chain and marked according to ISO 3077
Product code Rated Capacity Colour Code Standard Lift Effort on Lever to Lift Full Load No. Load Chain Falls Load Chain Diameter
508053 0.5t White 3m 240kg 1 5mm x 15mm
508103 1t Violet 3m 250kg 1 6mm x 18mm
508203 2t Green 3m 335kg 1 8mm x 24mm
508303 3t Yellow 3m 335kg 2 8mm x 24mm 
508503 5t Red 3m 363kg 2 9mm x 30mm 
508603 10t Orange 3m 380kg 4 9mm x 30mm 

These chain blocks are colour coded to match international lifting standards for fast and accurate identification of WLL. Every chain block is also operationally tested to its rated capacity and is supplied with a Beaver test certificate, relating to its stamped identification side plate.

Product Code Rated Capacity A B C H Net Weight
508053 0.5t 132mm 148mm 28mm 345mm 11kg
508103 1t 151mm 172mm 32mm 376mm 12.5kg
508203 2t 175mm 210mm 36mm 470mm 19.5kg
508303 3t 176mm 230mm 46mm 565mm 29kg
508503 5t 189mm 280mm 46mm 688mm 41.3kg
508603 10t 189mm 463mm 57mm 765mm 78.5kg

For technical drawings of these lever blocks, please see the linked data sheet below.

For more information on our materials handling range, please contact our Customer Care team.


Returns will be accepted for faulty or defective goods and any other non-excludable obligations of Bunzl Safety set out in the Trade Practices Act 1974 or similar State and Territory legislation.

Returns are subject to customer following Bunzl Safety’s recommended care and maintenance instructions which can be found on the garments swing tag. Bunzl Safety found to be faulty will be replaced at no cost.

Items that are sourced from 3rd party distributors will carry their own manufacturer’s warranty.

Returns/Exchange Policy:

Bunzl Safety to be notified within 7 days from receipt of order for any products that are to be returned/exchanged.

Before any items are returned the following steps need to be actioned:

  • Complete Return Authorisation Form (RAF)
  • Obtain a Return Authorisation Number
  • Forward the garments with the (RAF) form to the specified Worksense branch
  • Goods will be inspected and credited off your account once approved

Please Note: Bunzl Safety must approve all returns before they are forwarded back to the designated branch. These authorised returns must be freight prepaid and will only be accepted if they are in a saleable condition. Products specifically purchased, manufactured, machined or cut to size or to your company’s specification are not returnable unless prior approval has been given.

Shipping is free for orders over $300 ex GST. All our products are despatched from our warehouses located throughout Australia.

Orders being delivered throughout Australia have a delivery charge of $15 ex GST. This will be confirmed at checkout.

For overseas orders, please send your enquiry to

Please note that the metric system is used for all forms of measurement for this product.

Data Sheet

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About Bunzl Safety and Lifting

Bunzl Safety and Lifting offers an integrated approach to the selection, supply, service, and replacement of safety products, resulting in our ability to manage the complete life cycle of your personal and workplace safety requirements. Bunzl Safety and Lifting is a leading manufacturer of safety products, we provide the very best in workwear, corporate wear, PPE, footwear, materials handling, load restraint, and recovery,height safety, and site safety. We are also a leading supplier of some of the best industrial safety brands on the market, including Mack, Ninja, Contego, Boomerang, Beaver, B-Safe, WS Workwear, Frontier, Black Rat, Robertsons, 3M, Honeywell, Ansell, Bolle Safety, DuPont, Donaghys, MSA, Moldex, Steel Blue, Oliver, uvex, Sqwincher, MaxiFlex, DNC Workwear, Mayo Hardware, Gunnebo Industries, Skylotech and Blundstone. We also offer a range of services including product specialisation and consolidation, custom embroidery and branding, lifting equipment and inspections, NATA Accredited testing and services, height safety installed systems and training, managed inventory, eCommerce and digital solutions, clothing fitouts and yearly uniform issues, ethical sourcing, Indigenous Engagement, and environmental responsibility. We have an Australia-wide network of branches that ensures fast shipping across the country.

Bunzl Brands & Operations Pty Ltd (BBO) located at 55 Sarah Andrews Close Erskine Park NSW 2579 quality scope covers: manufacturing, importing, wholesaling, repairing and testing of lifting, rigging equipment, winches, hoists and materials handling products. The manufacture of synthetic slings and webbing products including load restraint and height safety equipment. Manufacture, import, wholesale and distribution of PPE products, workwear and hand tools. Design and development of products and services and the provision of mechanical testing services.