Mining Chains and Accessories

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Product Description

Mining Chains for use with Conveyors or Haulages are supplied conforming to specifications IS:3948, DIN: 22252 & DIN:20637 or to conform to any other special requirement of customer.

SPECIFICATION:

Material: High Grade Manganese Steel for GR. B Chain and Ni Cr Moly Steel for Gr. C Chain
Heat Treatment: Hardened and Tempered
Process of Manufacture: Resistance Butt Welded up to 20 mm Dia and Flash Butt Welded 22 mm Dia and above
Delivery condition: Chains are calibrated & supplied in Matched pairs

All dimension in mm
Nominal chain size		14 x50	18 x 64	19 x 64.5	22 x 86	24 x 86	26 x 92	30 x 108	34 x 126
Material diameter and tolerance		14 /+ 0.4	18 -/+ 0.5	19 -/+ 0.5	22 -/+ 0.7	24 -/+ 0.8	26 -/+ 0.8	30 -/+ 0.9	34 -/+ 1.0
Pitch and tolerance		50 -/+ 0.5	64 -/+ 0.6	64.5 -/+ 0.6	86 -/+ 0.9	86 -/+ 0.9	92 -/+ 0.9	108 -/+ 01.0	126 -/+ 1.0
Outside width (max)		48	60	63	74	79	86	98	109
Inside width (min)		17	21	22	26	28	30	34	38
Test force (KN)	Gr B	150	250	280	380	450	530	710	1160
Test force (KN)	Gr C	200	330	360	490	580	680	900	1450
% Total elongation At test force (max)	Gr B	1.4	1.4	1.4	1.4	1.4	1.4	1.4	1.4
% Total elongation At test force (max)	Gr C	1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.6
Mini breaking force (KN)	Gr B	190	320	360	480	570	670	890	1450
Mini breaking force (KN)	Gr C	250	410	450	610	720	850	1130	1790
& total elongation at break min		12% minimum as per IS, 14 % minimum as per DIN
Bend test deflection in mm BS, ISO and IS Din		11	14	15	18	20	21	24	27
Approximate weight per meter Kg		4.0	6.6	7.0	9.6	11.	13.9	18.4	22.9