YP Petro manufactures power end components including extension rods, crossheads, crosshead pins, cross pin baffles, upper and lower guide plates, packing boxes, seal rings, and oil seal lips. We also supply crankshaft assemblies, gear sets, and connecting rods for major mud pump models.

Yes. YP Petro accepts OEM/ODM orders based on customer drawings, technical specifications, or reverse-engineered samples. Our engineering team can confirm feasibility, recommend material upgrades, and provide quotations within 3-5 working days.

What power end parts does YP Petro manufacture?

YP Petro manufactures power end components including extension rods, crossheads, crosshead pins, cross pin baffles, upper and lower guide plates, packing boxes, seal rings, and oil seal lips. We also supply crankshaft assemblies, gear sets, and connecting rods for major mud pump models.

What other fluid end parts does YP Petro supply?

In addition to cylinder liners, YP Petro supplies a complete range of fluid end parts, including pistons, piston rubber, valve bodies, valve seats, valve rubber, liner seals, cylinder head gaskets, valve cover seals, piston rods, clamp assemblies, valve covers, cylinder heads, flange heads, cylinder flanges, cylinder covers, and inhalation capsules. We also supply dampener diaphragms, pressure gauges, fittings, relief valves, and exhaust valves.

What size range of cylinder liners does YP Petro offer?

YP Petro cylinder liners are available in metric sizes from 100mm to 180mm and imperial sizes from 3" to 7.5" (including 3", 3.5", 4", 4.5", 5", 5.5", 6", 6.25", 6.5", 6.75", 7", 7.25", 7.5"). Custom sizes are available on request.

What is the difference between bi-metal, ceramic, chrome-plated, and high-frequency quenching cylinder liners?

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Home » Products » Drilling rig rotary system » Downhole motor » API Oil Downhole Drilling Tools/ Downhole Screw Motors

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API Oil Downhole Drilling Tools/ Downhole Screw Motors

API Oil Downhole Drilling Tools/ Downhole Screw Motors


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Product Description

Product Description

Mud Motor Downhole Motor Screw drill motor

Downhole motor is a positive-displacement motor, widely used in drilling, kick-off, azimuth control, coring, reaming, and work over for directional wells, horizontal wells, of oilfields and coal mines. d

API Oil Downhole Drilling Tools/ Downhole Screw Motors rilling mud motor, drilling mud motor, drilling mud motor, drilling mud motor, drilling mud motor, drilling mud motor, drilling mud motor, drilling mud motor,

Technical Specification of Drilling Mud Motor :

Motor Type	5LZ73 ×7	5LZ89 ×7	5LZ95×7	5LZ120×7	5LZ120II×7	5LZ165×7	5LZ165×7IV	5LZ89 ×7V
Hole size( In)	3-1/8~4-3/4	4-1/2~6	4-5/8~6	5-7/8~7-7/8	5-7/8~7-7/8	8-3/8~9-7/8	8-3/8~9-7/8	8-3/8~9-7/8
Flow rate range (L/S)	2~4	3~8	8~13	9~14	9~16	20~28	20~28	20~28
Rotation Speed (Rpm)	125~220	95~200	80~165	95~200	95~200	90~160	90~160	90~160
Pressure fall of motor (Mpa)	2.4	2.4	2.4	2.4	2.4	2.4	3.2	4.0
Operating Torque (N.m)	320	560	1200	1350	1700	3300	4500	5600
Stall torque (N.m)	560	980	2100	2360	2950	5775	7875	9800
Output power (Kw)	4.2~7.4	5.6~11.7	10~20.7	13.4~28.3	16.9~35.6	31.1~55.3	42.4~75.4	52.8~93.8
Bit diff. pressure (Mpa)	1.4~7	1.4~7	1.4~7	1.4~7	1.4~7	1.4~7	1.4~7	1.4~7
Recommended W.O.B. T	1.5	2	2.5	3	3	6	8	10
Max. W.O.B. T	2	3	5	5	5	16	16	16
Connection -Upper box	2-3/8TBG	2-3/8	2-7/8	3-1/2	3-1/2	4-1/2	4-1/2	4-1/2
Connection -lower box	2-3/8	2-3/8	2-7/8	3-1/2	3-1/2	4-1/2	4-1/2	4-1/2
Vertical	3,670	2,700	4,035	3,385	4,555	5,860	6,770	7,665
Tool length-Single-bent (mm)			4,035	3,900	4,555	5,860	6,770	7,665
Tool length- Double-bent(mm)			4,185	4,060	4,715	6,110	7,020	7,915
Vertical	85	83	140	200	265	668	730	810
Tool WT-Single-bent( kg )			145	248	270	688	750	830
Tool WT-Double-bent( kg )			150	258	280	714	776	856

HDD screw downhole mud motor Mud Motor HDD

FAQ

Q YP Petro manufactures power end components including extension rods, crossheads, crosshead pins, cross pin baffles, upper and lower guide plates, packing boxes, seal rings, and oil seal lips. We also supply crankshaft assemblies, gear sets, and connecting rods for major mud pump models.

A
Yes. YP Petro accepts OEM/ODM orders based on customer drawings, technical specifications, or reverse-engineered samples. Our engineering team can confirm feasibility, recommend material upgrades, and provide quotations within 3-5 working days.
Q What power end parts does YP Petro manufacture?

A
YP Petro manufactures power end components including extension rods, crossheads, crosshead pins, cross pin baffles, upper and lower guide plates, packing boxes, seal rings, and oil seal lips. We also supply crankshaft assemblies, gear sets, and connecting rods for major mud pump models.
Q What other fluid end parts does YP Petro supply?

A
In addition to cylinder liners, YP Petro supplies a complete range of fluid end parts, including pistons, piston rubber, valve bodies, valve seats, valve rubber, liner seals, cylinder head gaskets, valve cover seals, piston rods, clamp assemblies, valve covers, cylinder heads, flange heads, cylinder flanges, cylinder covers, and inhalation capsules. We also supply dampener diaphragms, pressure gauges, fittings, relief valves, and exhaust valves.
Q What size range of cylinder liners does YP Petro offer?

A
YP Petro cylinder liners are available in metric sizes from 100mm to 180mm and imperial sizes from 3" to 7.5" (including 3", 3.5", 4", 4.5", 5", 5.5", 6", 6.25", 6.5", 6.75", 7", 7.25", 7.5"). Custom sizes are available on request.
Q What is the difference between bi-metal, ceramic, chrome-plated, and high-frequency quenching cylinder liners?

A
| Type | Inner Material | Hardness | Service Life | Best For |
| Bi-Metal | High-chromium cast iron | HRC 62 | 800h+ | General high-pressure, abrasive drilling |
| Ceramic | Al₂O₃ or Zirconia | HRC 80+ | 1500h+ | Extreme abrasion, high-sand formations |
| Chrome-Plated | Hard chrome coating | HRC 55 | 300-400h | Moderate conditions, budget operations |
| High-Frequency Quenching | Quenched alloy iron | HRC 50 | 200-300h | Light-duty, low-cost applications |