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Chain Pulley Blocks

Chain Pulley Blocks

Techno Industries

Chain Pulley Blocks

Chain Pulley Blocks, GR 80 have steel forged hooks, which are confirming to IS-8610 and fitted in upper arm bottom block made out of heavy duty S.G. iron / malleable casting. The grade 80, IS-6216 alloy steel chains uniformly electrically welded from alloy-steel duly heat treated for ductility, toughness & wear resistance accurately calibrated for smooth running in wheels. The gears are made from nickel-chrome, alloy steel, case hardened, gears are accurately machined and teeth generated on hobbing machine to corrected involutes for high bending stress and low wear.

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Specifications
Features

Model No.	10 SF	20 DF	30 DF	50 DF	75 TF	100 QF
Capacity in Kgs	1000	2000	3000	5000	7500	10000
No. of falls	1	2	2	2	3	4
Chain Velocity Ratio	52	104	144	144	216	288
Effort at full load Kgs	26	28	30	49	53	57
Load chain size mm	8	8	9	10	10/12	10/12
Wt. Of standard block in Kgs	22	32	58	75	120	160
Add. Wt. Per meter lift in Kgs	3.0	4.5	6.5	8.0	11.5	15.0
Head room reqd. (mm)	460	550	690	775	928	1020

Load chain wheels are of S.G. iron/malleable casting with accurate chain sprockets for smooth running.
Load wheel is mounted on two ball bearings for smooth operation
Hand chain wheel is manufactured from graded casting as per IS-210
Screw and friction type self actuating load pressure brake ensures safety at all positions
Rigid frame built from steel plates