procurement of triplex roller chain 3 pitch for rotary breaker of 4x210mw chp i and 2 and 1 / 2 pitch triplex roller chain for rotary breaker of 1x500mw chp ii at sgtps mppgcl birsinghpur procurement of triplex roller chain 3 pitch for rotary breaker of 4x210mw chp i and 2 and 1 / 2 pitch triplex roller chain for rotary breaker of 1x500mw chp ii at sgtps mppgcl birsinghpur , triplex roller chain 3” pitch for rotary breaker of 4x210 mw chp-i pitch-76.2 mm roller dia-47.62 mm no. of standers-3 no. pin dia-23.8mm c / pin length-282 mm material composition: c-0.55-0.65% mn-0.75-0.90% cr-0.70-0.90% p- max 0.030% s- max 0.035% , triplex roller chain 2 & ½” pitch, as-no-200-3 for rotary breaker of 1x500 mw chp-ii pitch-59.6 mm roller dia-39.6 no. of standers-3 no. pin dia-19.84 mm c / pin length-212.2 mm material composition : c-0.55-0.65% mn-0.75-0.90% cr-0.70-0.90% p- max 0.030% s- max 0.035% ( as per enclosed drawing )