3S Industrial Manual Lever Blocks
The heavy duty lever blocks are a versatile lifting and tensioning device widely used in rigging, construction, and mining. The 3S industrual chain lever block mechanism and gears are enclosed in a robust all-steel compact shell. The load chain is made of high resistance Grade 80 alloy steel that has a black finish, is heat treated, and is calibrated and marked according to ISO 3077 and ISO 1834. 'ID' plates and rivets are supplied in stainless steel (a non-conductive material) in order to avoid dangerous sparking, making them ideal for underground mining.

250kg & 500kg 3S Lever Blocks are designed for small to medium size lifting and pulling applications.
The design combines strength and compact design into one, to provide a high quality and versatile Lever Block.
- Load chain made from high resistance, Grade 80 zinc plated finish, calibrated and marked according to international standards ISO 3077 and ISO 1834.
- The short arm lever and the gears ration allows minimum effort to raise maximum load with maximum security
- Top and bottom hook are complete with cast latches
- Top and bottom hooks are fitted with ball bearings to allow rotation under load
- Compact design to allow minimum headroom
- 3S lever blocks are operationally tested to its rated capacity and its supplied with a test certificate, relating to its stamped identification side plate
- Repair and testing facilities are to NATA specification
- Manufactured to AS 1418.2 and exceeds standards
- Gunmetal Grey
- High quality aluminium housing
- Easy handling with low physicalforce on lever
- Fully protected mechanism for low maintenance cost
- Easy adjustment by free chaining mode
- Grade 80 zinc plated alloy load chain
- Bearing top and bottom hook
- Load drop protection in free-wheel position
- Comprehensive spare parts range and technical support
Product Code | Rated Capacity | Colour Code | Standard Lift | Test Load | Effort on Lever to lift Full Load | No. Load Chain Fails | Load Chain Diameter |
---|---|---|---|---|---|---|---|
506025 | 0.25t | Grey | 1.5m | 4.9kN | 210N | 1 | 4mm |
506050 | 0.5t | Grey | 1.5m | 9.8kN | 320N | 1 | 4mm |
506080 | 0.8t | White | 1.5m | 11.3kN | 140N | 1 | 6mm x 16mm |
506160 | 1.6t | Violet | 1.5m | 22.5kN | 240N | 1 | 8mm x 24mm |
506320 | 3.2t | Yellow | 1.5m | 45kN | 320N | 1 | 10mm x 30mm |
506630 | 6.3t | Brown | 1.5m | 1.5kN | 340N | 2 | 10mm x 30mm |
506900 | 9t | Orange | 1.5m | 135kN | 360N | 3 | 10mm x 30mm |
Every 3S industrial level block is operationally tested to its rated capacity and is supplied wtih a test certificate, relating to its stamped identification side plate. This lever block comlpies to AS 1418.2 and approved Colour Coded to Match International Lifting Standard.
Product Code | Rated Capacity | A | B | C | D | E | H | Net Weight |
---|---|---|---|---|---|---|---|---|
506025 | 0.25t | 87mm | 55.5mm | 68mm | 145mm | 21mm | 200mm | 1.5kg |
506050 | 0.5t | 100.5mm | 62.5mm | 81mm | 160mm | 24.5mm | 250mm | 2.5kg |
506080 | 0.8t | 148mm | 90mm | 136mm | 280mm | 30mm | 325mm | 7kg |
506160 | 1.6t | 172mm | 98mm | 160mm | 410mm | 35mm | 380mm | 11kg |
506320 | 3.2t | 200mm | 115mm | 180mm | 410mm | 40mm | 480mm | 21kg |
506630 | 6.3t | 200mm | 115mm | 235mm | 410mm | 50mm | 620mm | 31kg |
506900 | 9t | 200mm | 115mm | 316mm | 410mm | 60mm | 700mm | 47kg |