Product
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ZQ Drill Pipe Power Tongs
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ZTQ Series Dual-Purpose
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TQ Series Casing Tong
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TB Series Casing Back-up
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ZQF216-110 Iron roughneck
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ZQJ178／90 Drill Pipe
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Q Series Of Spinning
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YZB (YZC)Series Of
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TC Series Of Crown Blocks
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YG Series Of Hook Blocks
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YC Series Of Traveling
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DG Series Of Hooks
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Swivel With Spinner
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Hydraulic Spinner
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Dslseries Power Swivels
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Kelly Spinner
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QD Pneumatic Casing
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DWJ-178／250 Power Slips
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Roller Kelly Bushing
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ZP Series Of Rotary Tables
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Rotary Bushing And Insert
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Casing Bushing And Insert
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QJ Series Air Winches
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YJ Series Hydraulic Winches
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TF Series Of Casing Guides
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YM Series Hydraulic
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YXM Rotary Cathead
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TS Series Of Hydraulic Riser
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FP Sealed Anti-Spraying
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FSQ Mouse Hole Clamping
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Suspender
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Series Of Air Motors Fms
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Pneumatic Reversing Valve
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TJX Series Of Mandrel
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TJA Series Casing And
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PZ Series Of Mud Pump
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QW Series Drill Pipe Air Slip
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XQ Series Of Hydraulic
27-HDP ROLLER KELLY BUSHING
Roller kelly bushing is a necessary tool for drilling, by matching with rotary square to drive kelly pipe. Through the rotation of four rolls, the friction between rolls and kelly pipes is reduced to extend service life. Change different rollers to match with different squares and hexagonal kelly pipes and connect with different rotary tables. Two transmission styles (square and pinconnect) are available. The product is designed and manufactured according to API Spec 7K “Specification for Drill Equipment”.
Technical specifications：
| Model | HDS | 27-HDP | 20-HDP | MDS | 20-MDP | 17-MDP | LDS | |
| Type | Heavy | Medium | Light | |||||
| Max.torque | N.m | 32365 | 22555 | 13729 | ||||
| ft.lbf | 23871 | 16636 | 10126 | |||||
| Drive Mode | Square | Pin | Square | Pin | Square | |||
| Square | mm | 76.2～152.4 | 63.5～133.35 | 63.5～133.35 | ||||
| in | 3～6 | 21/2～51/4 | 21/2～51/4 | |||||
| Hex | mm | 76.2～152.4 | 76.2～107.95 | 76.2～107.95 | ||||
| in | 3～6 | 3～41/4 | 3～41/4 | |||||
| Size | mm | 630×630×740 | 630×630×780 | 493×493×696 | 510×510×720 | 458×458×700 | 508×508×700 | |
| in | 24.8×24.8×29.1 | 24.8×24.8×30.7 | 19.4×19.4×27.4 | 20×20×28.3 | 18×18×27.5 | 20×20×27.5 | ||
| Weight | Kg | 700 | 730 | 670 | 420 | 460 | 340 | 400 |
| lb | 1540 | 1610 | 1470 | 924 | 1012 | 750 | 808 | |
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online service
86-513-84890912
Address：No.60 Weihai(N) Road, Bencha Town, Rudong County, Jiangsu Province, China
Tel：0086-513-84890912
84821070、84821059
E-mail：rslzg@jsrushi.com
rslzg@163.com linhua@jsrushi.com
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