API 7K Oilfield Drilling Rig Drawworks Pneumatic Tube Clutch

Pneumatic Tube Clutches are one of the most important transmission parts for drilling rigs and workover rigs, which are used to transmit torque and separate transmission system during operation.

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Pneumatic Tube Clutch

Pneumatic Tube Clutches are one of the most important transmission parts for drilling rigs and workover rigs, which are used to transmit torque and separate transmission system during operation. Air tube clutch has the character of clutch quick, smooth operation, clearance evenly, reliable and security.

 

Its main functions are:

1. Transmit torque in power transmission system.

2. Acts as a clutch and transmit torque in the pump set.

3. Can be used for pneumatic brake when emergency.

Air tube cluth can be devided into common type and ventilation type:

Common type: LT300/100T, LT400/125T, LT500/125T LT600/125T LT700/135T, LT700/200T, LT800/135T

Ventilation type: LT500/200T, LT500/250T, LT600/250T, LT700/250T, LT800/250T, LT900/250T ,LT1070/250T , LT1170/250T, LT965/305T, LT1168/305T, LT1120/300T,LT1250/300T,

TypeLT300/100LT500/125TLT600/125TLT700/200LT700/135CBCLT800/135
Drawing115.101.00115.102.00115.105.00105.103.00115.107.00T14-013-00
Rotary Speed
r/min		Max2332-26671642-18771352-15471315-15041198-14501099-1328
Rating1348-1542949-1085781-894760-869687-881635-768
Torsional Moment
n.m		Max3080-403010455-1367014810-1936033080-4327022350-3266028850-42160
Rating2025-26866790-91149875-1290822060-2885014900-2177519230-28080
Working Pressure (Mpa)0.7-0.90.7-0.90.7-0.90.7-0.90.7-1.00.7-1.0
Pneumatic Tube Cubage (1)1.35.55.5172~42.4~5
Attrition Annulus dia (mm)300497597695700800
Join Link SizeMax dia.45072082010009001015
Max Width115154154246176176
Orientation dia.450d11720h11820d91000h11900k91015h11
Bolt number and dia.12-13H1212-17H1216-17H1212-27H12
4-25H8		20-17H1218-17H12
6-17H19
Bolt Distributing dia.430690790950870975
Air Tilet Pipe Screw ThreadM20x1.5M20x1.5M20x1.5M33x1.52-M20x1.52-M20x1.5

2. Ventilated type:
Against the inadequacies of the common type, developed pneumatic clutch and adopted a set of Thermal Energy Transfer Devices.

TypeAVB500/200LT500/250TAVB600/250LT700/250TLT700/135DYLT800/250T
DrawingG301.21.00T14-014-00G301.22.00AF24001.02.01.00A115.31.00115.28.00
Rotary Speed
r/min		Max1312-15781586-17011281-1544–1569-18901061-1224
Rating758-912916-983740-892–907-1092587-707
Torsional Moment
n.m		Max17110-2497023390-2690032200-46710–24560-3563054240-78660
Rating11406-1664615590-1793021466-3114032100-4730016170-2375036160-52440
Working Pressure (Mpa)0.7-01.00.7-0.80.7-1.00.7-1.00.7-1.00.7-1.0
Pneumatic Tube Cubage (1)13×23~52×22.28×2242.66×2
Attrition Annulus dia (mm)500496600700700800
Join Link SizeMax dia.78075089010109351115
Max Width234288284292200300
Orientation dia.300H8750f9340H8
40H8x100		240H8360H101150f9
Bolt number and dia.40H8x8012-18H1012-23H108-32H816-22H1016-22H10
Bolt Distributing dia.10-18H107204203004001070
Air Tilet Pipe Screw Thread3602-M20x1.52-G 1/2″2-G 1/2″1-M20x1.52-G 1/2″
TypeLT800/250TLT900/250TLT1070/200TAVB1120/300LT700/250TAVB1250/300
Drawing115.29.00ZB01.05.00115.01.00G301.25.00115.02.00G301.26.00
Rotary Speed
r/min		Max1016-1224903-1087932-1123–765-820–
Rating587-707522-628539-668–442-474–
Torsional Moment
n.m		Max54240-7866068000-9893084600-122670–117740-134130–
Rating36160-5244045467-6595356400-81790123000-17550078490-89420153000-218000
Working Pressure (Mpa)0.7-01.00.7-01.00.7-1.00.7-1.00.7-0.80.7-1.0
Pneumatic Tube Cubage (1)2.66×23×5303.96×25-744×2
Attrition Annulus dia (mm)8008971055112011681250
Join Link SizeMax dia.111512301400145015001580
Max Width300292260357302357
Orientation dia.300H8
40H8x100		1220f91400h11840H8
60H8x100		1500h101050H8
60H8x90
Bolt number and dia.12-22
H10		16-22H1012-27
H10
4-25H8		20-23
H10		12-27
H10		16-25
H10
Bolt Distributing dia.420H81184135089014451110
Air Tilet Pipe Screw Thread2-G 1/2″2-G 1/2″2-M33x1.52-G 1/2″2-M33x1.52-G 1/2″

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