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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Tel:+0086 133 9331 8107
Mail:sales06@yppetro.com

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Home » Products » Drilling rig rotary system » Downhole motor » API 7-1 Downhole Drilling Mud Motor for HDD Oil Gas and Coiled Tubing

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API 7-1 Downhole Drilling Mud Motor for HDD Oil Gas and Coiled Tubing

API 7-1 Downhole Drilling Mud Motor for HDD Oil Gas and Coiled Tubing


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Product Description

Product Description

API 7-1 Downhole Drilling Mud Motor for HDD Oil Gas and Coiled Tubing Features
The ordinary downhole motor consists of the following components:

(1) Float assembly or By-pass valve assembly

(2) Rotor anti-drop assembly

(3) Power section assembly

(4) Universal shaft assembly

(5) Bearing assembly

In addition to ordinary downhole motor, the following components for special purpose are available to make up steerable downhole motor to meet various requirements of drilling operation:

(1) Directional joint

(2) Bend joint (fitted above or below by- pass

valve to make up single or double bend downhole motor)

(3) Hollow by-pass power section

(4) Fixed Bend Housing (with 0~3°fixed angle)

(5) Adjustable bend housing

(6) Housing stabilizer on bearing assembly

(7) Changeable stabilizer

API 7-1 Downhole Drilling Mud Motor for HDD Oil Gas and Coiled Tubing

downhole drilling motor

(Some Models are here for your reference, more models and deatils pls contact us.)

(Of course, customization is also allowable, as long as you can provide detailed drawing, especially some parts like bearings.)

Each downhole mud motor is tested on the professional testing bench and the delivered downhole mud motor is 100% guarateed qualitified, then the test report will be provided to you.

Each downhole mud motor can continuously work 7~10 days with good working condition and correct operation.

Of course, online after-sale service is also available at any time.

Type		5LZ73 7.0	5LZ89 7.0	5LZ95 7.0	7LZ95 3.5	9LZ95 7.0	5LZ120 7.0
Hole Size	Mm	95~121	114~152	118~152	118~152	118~152	149~200
Hole Size	In	33/4~43/4	41/2~6	45/8~6	45/8~6	45/8~6	57/8~77/8
Thread Type	Top	23/8"REG	23/8"REG	27/8"REG	27/8"TBG	27/8"REG	31/2"REG
Thread Type	Bottom	23/8"REG	23/8"REG	27/8"REG	27/8"REG	27/8"REG	31/2"REG
Nozzle pressure drop	Mpa	1.4~7	1.4~7	1.4~7	1.4~3.5	1.4~7	1.4~7
Recommend Flow	L/S	3~8	3~8	7~12	7~11	6~10	9~14
Bit rotary	R/Min	109~291	95~200	90~195	120~240	90~200	95~200
Motor pressure drop	Mpa	2.4	2.4	3.2	2.4	2.4	3.2
Working torque	N.M	460	628~838	1260~1630	723~960	750~1020	1480~1820
Lagging torque	N.M	650	1300	2200	1500	1550	2440
Output power	KW	4.7~12.5	7.3~15.3	13.6~29.5	18~24	8.3~18.5	16.4~34.5
Recommended bit weight	T	4.7~12.5	2.0	2.5	1.0	2.5	3
Max bit weight	T	2.5	3.0	5	1.5	5	5
Length (mm)	Straight	3450	3570	4450	2500	3590	5085
Length (mm)	Single curve	3450		4675		3590	5335
Weight (Kg)	Straight	100	98	140	89	120	390
Weight (Kg)	Single curve	102		150		120	420

Type		5LZ165 7.0	5LZ165 7.0	5LZ172 7.0	5LZ197 7.0	5LZ210 7.0	5LZ244 7.0
Hole Size	Mm	213~251	213~251	213~251	251~311	251~375	311~445
Hole Size	In	83/8~97/8	83/8~97/8	83/8~97/8	97/8~121/4	97/8~143/4	121/4~171/4
Thread type	Top	41/2"REG	41/2"REG	41/2"REG	51/2"REG	65/8"REG	65/8"REG
Thread type	Bottom	41/2"REG	41/2"REG	41/2"REG	65/8"REG	65/8"REG	75/8"REG
Nozzle pressure drop	Mpa	1.4~7	1.4~7	1.4~7	1.4~7	1.4~7	1.4~7
Recommend Flow	L/s	20~28	20~28	25~35	25~57	35~50	50~75
Bit rotary	R/min	90~160	80~150	90~160	86~196	100~160	100~160
Motor pressure drop	Mpa	2.4	3.2	4.0	4.0	4.0	4.0
Working torque	N.m	2750~3960	3860~4980	5860~6970	7800~9350	9980~11900	12870~13970
Lagging torque	N.m	6300	8470	11550	18690	19600	23000
Output power	Kw	31.6~56.2	37~69.4	60.4~107.4	70~160	115~183	140~225
Recommended bit weight	T	8	8	10	16	17	18
Max bit weight	T	16	16	16	24	28	30
Length (mm)	Straight	5930	6830	7230	8470	8400	9060
Length (mm)	Single curve	6180	7080	7480	8720	8660	9320
Weight (Kg)	Straight	742	820	930	1140	1460	1980
Weight (Kg)	Single curve	772	850	970	1195	1520	2050

For unparalleled performance in HDD, oil, gas, and coiled tubing applications, trust Yppetro's API 7-1 Downhole Drilling Mud Motor. Engineered to exceed industry standards, our mud motors deliver reliability and efficiency when you need it most. Choose Yppetro for your drilling needs and experience the difference in quality and performance!

Mud Pump Parts liner mud pump steel liner mud pump ceramic liner high-chrom liner mud pump sleeve Mud Pump Piston Downhole Drilling

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 |

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PRODUCT CATEGORY

API 7-1 Downhole Drilling Mud Motor for HDD Oil Gas and Coiled Tubing

API 7-1 Downhole Drilling Mud Motor for HDD Oil Gas and Coiled Tubing Features
The ordinary downhole motor consists of the following components:

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.

Q What power end parts does YP Petro manufacture?

Q What other fluid end parts does YP Petro supply?

Q What size range of cylinder liners does YP Petro offer?

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

Random Products

SEARCH PRODUCT

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CONTACT US

Copryright 2026 Qingdao Yingpai Import and Export Trading Co., Ltd.

PRODUCT CATEGORY

API 7-1 Downhole Drilling Mud Motor for HDD Oil Gas and Coiled Tubing

API 7-1 Downhole Drilling Mud Motor for HDD Oil Gas and Coiled Tubing FeaturesThe ordinary downhole motor consists of the following components:

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.

Q What power end parts does YP Petro manufacture?

Q What other fluid end parts does YP Petro supply?

Q What size range of cylinder liners does YP Petro offer?

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

Random Products

SEARCH PRODUCT

MENU

CONTACT US

Copryright  2026 Qingdao Yingpai Import and Export Trading Co., Ltd.

API 7-1 Downhole Drilling Mud Motor for HDD Oil Gas and Coiled Tubing Features
The ordinary downhole motor consists of the following components:

Copryright 2026 Qingdao Yingpai Import and Export Trading Co., Ltd.