1.Meets all pertinent world standards2.Hardened steel rollers supporting the load sheaves run smoother and last longer than bearings3.Reinforced double pawl brake system and larger dia. pawl springs ensure reliable brake4. Load chain is alloy steel grade 80 according to ISO 30775 Both top & bottom hooks with steel balls inside to ensure smoother rotation.6. Drop forged hooks that are designed to bend slowly to warn of overloads7. Every chain block is operationally tested to 150% of the rated capacity and issued an individual test certificate with unique serial number.8. Safety factor: 4 times of the rated capacityOptional Features:Overload ProtectionCaged roller bearings on load sprocketZinc plated load chainModelChain Block SLH-ARated Capacityt0.511.52351020Standard Liftm33333333Proof Loadkn/t7.35/0.7514.70/1.522.05/2.2529.4/344.1/4.573.5/7.5147/15294/30Pull to Rated Loadn/kg210/21.4330/33.7370/38215/22390/40450/46450/46450x2/46x2No.of Falls11122248Load ChainMM5x156x188x246x188x2410x3010x3010x30Hand Chainmm5x23.7x18Amm107130147130147168168200Bmm120142178142178210368580DimensionsCmm2803203904105106008201040Dmm36404550556585110Kmm2732363444506581Net Weightkg8.5111816.5244075193Gross Weightkg8.811.51917.52541.582205Extra Wt. per mkg1.51.72.32.53.75.39.719.4 Website:http://www.chinachain-hoist.com