Core Purpose & Equipment Compatibility
This catalog provides professional replacement parts exclusively compatible with workover rig models including XJ250, XJ350, XJ550, XJ650, XJ750, and ZJ20. Tailored for oilfield maintenance teams, workover contractors, and procurement managers, it addresses critical pain points like component wear, system downtime, and low maintenance efficiency in harsh oilfield operations. The core purpose is to ensure reliable rig operation, extend equipment lifespan, and meet API Spec 7K and GB/T 30555-2014 industry standards, serving as a comprehensive reference for both procurement and technical troubleshooting.
1. Hydraulic Cylinders
Hydraulic cylinders are core executive components for workover rig lifting, telescoping, and clamping operations. Prone to seal wear, piston rod scuffing, and cylinder corrosion in high-pressure, dusty oilfield environments, they cause hydraulic leakage and reduced output. Our cylinders feature high-strength alloy materials and precision machining, ensuring stable high-pressure performance and long-term sealing reliability for XJ/ZJ series rigs.
No. | Product Name | Specification | Applicable Model | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Balance Cylinder | HSG7035 | Universal for XJ/ZJ series | Cylinder barrel: 42CrMo alloy steel (quenched & tempered); Piston rod: 40Cr (hard chrome plating); Seals: FKM | 1. Seal abrasion by hydraulic oil contaminants; 2. Piston rod scuffing from sand/gravel impact. | 1. Maintain hydraulic oil cleanliness at NAS 8 grade; 2. Inspect rod surface weekly and polish minor scratches promptly. |
2 | Hydraulic Jack | Y3030 | XJ250, ZJ20 | Cylinder body: 45# carbon steel; Piston: Ductile iron QT600-3; Seals: Polyurethane (PU) | 1. Piston wear from long-term uneven load bearing; 2. Seal aging under high-temperature operation. | 1. Strictly adhere to rated load capacity; 2. Replace seals annually and store in dry environment when idle. |
3 | Telescoping Cylinder | Y16100 | Universal for XJ/ZJ series | Cylinder barrel: 42CrMo; Multi-stage rod: 40Cr (nitriding treatment); Seals: FKM | 1. Inter-stage rod collision during telescoping; 2. Cylinder deformation from lateral operational force. | 1. Ensure telescoping direction aligns with load direction; 2. Lubricate guiding mechanism with high-pressure lithium grease monthly. |
4 | Manual Tong Cylinder | Y15160 | Universal for XJ/ZJ series | Cylinder body: 45# carbon steel; Piston rod: 40Cr (chrome plating); Seals: NBR | 1. Seal damage from frequent pressure fluctuations; 2. Cylinder corrosion by drilling fluid immersion. | 1. Operate within rated pressure range; 2. Clean surface post-operation and apply anti-corrosion oil. |
2. Hydraulic Valves
Hydraulic valves regulate pressure, flow, and direction of hydraulic oil for rig executive components. In high-pressure, high-frequency switching scenarios, they suffer from valve core wear, spool jamming, and seal leakage, leading to system misoperation. Our valves use precision alloy steel and wear-resistant seals, ensuring stable control performance and reliable sealing for continuous rig operations.
No. | Product Name | Specification | Applicable Model | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Directional Control Valve | 4WMM10E-10/F | ZJ20 | Valve body: 45# carbon steel; Valve core: 40Cr (quenched & tempered); Seals: NBR | 1. Valve core wear by contaminant particles in hydraulic oil; 2. Spool jamming from oil contamination. | 1. Maintain hydraulic oil cleanliness at NAS 7 grade; 2. Check switching sensitivity regularly and disassemble for cleaning if jammed. |
2 | Pressure Relief Valve | DB10-1-301315 | ZJ20 | Valve body: 42CrMo; Valve core: 304 stainless steel; Spring: 60Si2Mn | 1. Spring fatigue from frequent pressure adjustment; 2. Seal leakage under high-temperature oil conditions. | 1. Avoid drastic pressure adjustments; 2. Calibrate pressure quarterly and replace spring if fatigued. |
3 | Hydraulic Control Valve | Y-AD-2 | XJ550 | Valve body: 6061 aluminum alloy; Valve core: 316 stainless steel; Seals: NBR | 1. Valve body deformation from over-tightened installation; 2. Seal aging from long-term use. | 1. Use torque wrench for bolt tightening per specs; 2. Replace seals every 12 months. |
4 | Hydraulic Control Valve | Y-T6-16 | XJ550 | Valve body: 45# carbon steel; Valve core: 40Cr; Seals: PU | 1. Valve seat wear from long-term oil flow impact; 2. Valve body corrosion in humid oilfield environment. | 1. Inspect valve seat wear regularly; 2. Apply anti-corrosion paint to exterior annually. |
3. Steering & Hoisting Equipment
Steering gears ensure precise rig relocation direction control, while hydraulic winches handle downhole tool lifting. Exposed to road vibration, heavy loads, and outdoor elements, they suffer from gear wear, wire rope fatigue, and steering jamming. Manufactured with high-strength alloy steel, these components guarantee reliable mobility and hoisting safety for XJ/ZJ series rigs.
No. | Product Name | Specification | Applicable Model | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Steering Gear | CQ8111J | Universal for XJ/ZJ series | Gear box: 45# carbon steel; Steering gear: 20CrMnTi (carburizing & quenching); Seals: NBR | 1. Gear wear from road vibration and frequent steering; 2. Seal leakage by dust/sand contamination. | 1. Lubricate with special oil every 1000km; 2. Clean exterior regularly to prevent dust accumulation. |
2 | Hydraulic Winch | 3T | XJ350 | Drum: 42CrMo; Gear: 20CrMnTi (carburizing & quenching); Frame: Q355B carbon steel | 1. Gear wear from heavy-load hoisting; 2. Drum surface wear by wire rope friction. | 1. Strictly avoid overloading; 2. Inspect wire rope weekly and replace if wear rate exceeds 10%. |
4. Filtration Components
Filtration components maintain hydraulic and lubrication system cleanliness, preventing contaminants from damaging precision parts. Long-term use causes filter clogging, reducing efficiency and affecting system pressure. Made of high-quality filter materials and durable housings, our products ensure effective impurity removal and stable rig system operation.
No. | Product Name | Specification | Applicable Model | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Hydraulic Filter | FAX-63×10 PSZ65 | XJ750 | Filter element: 316 stainless steel; Housing: Q235 carbon steel (anti-corrosion coated) | 1. Filter clogging by hydraulic oil contaminants; 2. Housing corrosion in humid environment. | 1. Clean element monthly and replace every 6 months; 2. Touch up anti-corrosion paint if peeling occurs. |
5. Threaded Joints & Fasteners
Threaded joints and fasteners secure rig structures and equipment, ensuring overall stability. Exposed to vibration, load changes, and corrosion, they suffer from thread wear, loosening, and rust. Made of high-strength alloy steel or stainless steel with anti-corrosion treatment, these components guarantee reliable connections for harsh oilfield operations.
No. | Product Name | Specification | Applicable Model | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Threaded Joint | NVP1/2" | XJ650 | 316L stainless steel | 1. Thread wear from repeated assembly/disassembly; 2. Corrosion by drilling fluid. | 1. Use torque wrench for specified tightening torque; 2. Apply anti-seize agent before installation. |
2 | Threaded Joint | NV3/4"NPT | ZJ20 | Q235 carbon steel (hot-dip galvanized) | 1. Galvanizing layer wear from assembly friction; 2. Corrosion in offshore saltwater environment. | 1. Avoid over-tightening to protect galvanizing layer; 2. Use marine-grade anti-corrosion paint for offshore use. |
3 | Brake Block Fastener | 34SM-B20H-T | ZJ20 | 40Cr alloy steel | 1. Thread wear from brake vibration; 2. Fatigue failure from long-term load bearing. | 1. Re-tighten monthly; 2. Replace if thread damage or fatigue cracks are found. |
6. Structural Components
Structural components are core load-bearing parts for rigs, supporting overall operation. Under long-term heavy loads, vibration, and corrosion, they suffer from fatigue deformation, weld cracking, and rust. Made of high-strength carbon steel/alloy steel with precision welding and anti-corrosion treatment, these components ensure strong load-bearing capacity and long service life.
No. | Product Name | Specification | Applicable Model | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Structural Component | 216-8684 | XJ350 | Q355B carbon steel (welded, surface painted) | 1. Weld fatigue cracking from long-term vibration; 2. Paint peeling by drilling fluid splashing. | 1. Non-destructive weld testing every 6 months; 2. Clean and repaint if paint peels. |
2 | Structural Component | 348-9202-866 | XJ250 | 42CrMo alloy steel (heat treated) | 1. Fatigue deformation from heavy loads; 2. Surface wear from component contact. | 1. Operate within rated load; 2. Inspect for deformation quarterly and straighten/replace if needed. |
3 | Structural Component | HE-2-FX-P51612 | XJ250 | 304 stainless steel | 1. Surface wear from environmental abrasion; 2. Corrosion by oilfield chemicals. | 1. Clean with neutral detergent regularly; 2. Avoid contact with strong corrosives. |
4 | Structural Component | E4019000001 | ZJ20 | Q355B carbon steel (sandblasted & painted) | 1. Paint aging from outdoor exposure; 2. Deformation from transportation collision. | 1. Touch up paint regularly; 2. Install protective buffers during transportation. |
5 | Structural Component | Y(3)127/446 | Universal for XJ/ZJ series | 45# carbon steel (quenched & tempered) | 1. Wear from high-frequency vibration; 2. Corrosion in humid air. | 1. Install anti-vibration pads at connections; 2. Apply anti-corrosion grease quarterly. |
6 | Structural Component | Y(3)74/446 | Universal for XJ/ZJ series | 45# carbon steel (quenched & tempered) | 1. Wear from high-frequency vibration; 2. Corrosion in humid air. | 1. Install anti-vibration pads at connections; 2. Apply anti-corrosion grease quarterly. |
7 | Structural Component | Y(3)59/370 | Universal for XJ/ZJ series | 45# carbon steel (quenched & tempered) | 1. Wear from high-frequency vibration; 2. Corrosion in humid air. | 1. Install anti-vibration pads at connections; 2. Apply anti-corrosion grease quarterly. |
8 | Structural Component | Y(3)45/345 | ZJ20 | 45# carbon steel (quenched & tempered) | 1. Wear from high-frequency vibration; 2. Corrosion in humid air. | 1. Install anti-vibration pads at connections; 2. Apply anti-corrosion grease quarterly. |
9 | Structural Component | 278564 | XJ350 | Q355B carbon steel (welded) | 1. Weld fatigue from vibration; 2. Corrosion by drilling fluid. | 1. Inspect welds monthly; 2. Annual cleaning and painting. |
10 | Structural Component | N374-41-091 | XJ350 | 42CrMo alloy steel | 1. Fatigue wear from long-term loads; 2. Contact wear with other components. | 1. Operate within rated load; 2. Monthly lubrication of contact surfaces. |
11 | Structural Component | I-25 | ZJ20 | 45# carbon steel | 1. Deformation from operational impact; 2. Humid air corrosion. | 1. Avoid collision with hard objects; 2. Annual anti-corrosion painting. |
12 | Structural Component | V-3A | XJ250 | 304 stainless steel | 1. Surface wear from environment; 2. Chemical corrosion. | 1. Regular cleaning; 2. Dry storage when idle. |
13 | Structural Component | ZX30-6649CJ | ZJ20 | Q355B carbon steel (sandblasted & painted) | 1. Paint peeling from weathering; 2. Deformation from long-term loads. | 1. Regular paint touch-ups; 2. Quarterly deformation checks. |
14 | Structural Component | 129-0375 | XJ550 | 42CrMo alloy steel | 1. Fatigue cracking from cyclic loads; 2. Vibration-induced wear. | 1. Semi-annual non-destructive testing; 2. Anti-vibration pads at connections. |
15 | Structural Component | 852XBAKP-D4XS | XJ650 | 45# carbon steel | 1. Drilling fluid corrosion; 2. Contact wear with components. | 1. Post-operation cleaning; 2. Regular lubrication of contact surfaces. |
16 | Structural Component | LH4260 | XJ650 | Q355B carbon steel | 1. Drilling fluid corrosion; 2. Contact wear with components. | 1. Annual cleaning and painting; 2. Monthly lubrication. |
17 | Structural Component | G880125 | XJ750 | 42CrMo alloy steel | 1. Fatigue wear from long-term loads; 2. Humid air corrosion. | 1. Operate within rated load; 2. Quarterly anti-corrosion grease application. |
18 | Drum Component | JC28/11-06-12-00 | XJ750 | 40CrNiMoA alloy steel | 1. Wear from wire rope friction; 2. Fatigue from cyclic loads. | 1. Regular wire rope inspection; 2. Semi-annual fatigue crack testing. |
19 | Structural Component | HD223 | XJ650 | 45# carbon steel (quenched & tempered) | 1. Vibration-induced wear; 2. Humid environment corrosion. | 1. Install anti-vibration pads; 2. Annual anti-corrosion painting. |
20 | Structural Component | 775569 | XJ250 | Q355B carbon steel | 1. Impact deformation; 2. Drilling fluid corrosion. | 1. Use protective covers during operation; 2. Regular cleaning and painting. |
21 | Structural Component | SD-OOC | XJ750 | 304 stainless steel | 1. Environmental abrasion; 2. Chemical corrosion. | 1. Clean with neutral detergent; 2. Avoid corrosive chemical contact. |
7. Electrical Components
Electrical components enable rig control and monitoring, critical for operational coordination. In humid, dusty, vibrating oilfield environments, they suffer from contact oxidation, short circuits, and connector loosening. Made of high-quality insulating materials and corrosion-resistant metals, our components ensure stable electrical performance and reliable connections.
No. | Product Name | Specification | Applicable Model | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Electrical Component | 103BRCB/374344-8/V20 | XJ650 | Shell: ABS plastic; Internal components: Copper alloy | 1. Contact wear from frequent switching; 2. Short circuit by dust/moisture intrusion. | 1. Keep component clean and dry; 2. Inspect contacts for oxidation and clean with alcohol. |
2 | Electrical Component | 30-011 | XJ250 | Shell: Aluminum alloy; Internal components: Copper alloy | 1. Shell corrosion in humid environment; 2. Wire connection loosening from vibration. | 1. Monthly wire connection checks; 2. Annual shell anti-corrosion painting. |
3 | Electrical Component | A35AA4MB53MA53X | ZJ20 | Shell: 304 stainless steel; Internal components: Silver-plated copper | 1. Silver plating wear from current flow; 2. Moisture-induced short circuit. | 1. Regular seal inspection; 2. Avoid current overloading. |
4 | Electrical Component | 12102-001 | XJ650 | Shell: ABS plastic; Internal components: Copper alloy | 1. Plastic aging from UV radiation; 2. Contact oxidation in humid air. | 1. Install protective cover against sunlight; 2. Regular contact cleaning. |
5 | Electrical Component | ZS1-L20E-F | XJ250 | Shell: Aluminum alloy; Internal components: Copper alloy | 1. Shell corrosion by drilling fluid; 2. Wire insulation damage from friction. | 1. Install protective baffle; 2. Inspect wire insulation regularly. |
6 | Electrical Component | B-Z | ZJ20 | Shell: ABS plastic; Internal components: Copper alloy | 1. Impact damage from falling objects; 2. Moisture-induced short circuit. | 1. Install protective guard; 2. Monthly sealing checks. |
7 | Electrical Component | E4222000000 | ZJ20 | Shell: 304 stainless steel; Internal components: Copper alloy | 1. Offshore saltwater corrosion; 2. Connection loosening from vibration. | 1. Marine-grade anti-corrosion treatment; 2. Regular connection tightening. |
8 | Electrical Component | A20AA128DA53DA53DA53 | ZJ20 | Shell: Aluminum alloy; Internal components: Silver-plated copper | 1. Silver plating oxidation; 2. Shell corrosion in humid air. | 1. Apply anti-oxidant to contacts; 2. Annual shell painting. |
9 | Electrical Component | G21-13-L | ZJ20 | Shell: ABS plastic; Internal components: Copper alloy | 1. Plastic deformation from high temperature; 2. Contact wear from frequent use. | 1. Avoid installation near high-temperature parts; 2. Replace if sensitivity decreases. |
10 | Electrical Component | V10-1P7P-1 | Universal for XJ/ZJ series | Shell: ABS plastic; Internal components: Copper alloy | 1. Moisture-induced short circuit; 2. Contact wear from frequent switching. | 1. Keep dry; 2. Regular contact inspection and cleaning. |
8. Transmission Components
Transmission components convert engine power to rig operational power, critical for coordinated system operation. Under high loads, high speeds, and frequent shifting, they suffer from gear wear, bearing damage, and oil leakage. Made of high-strength alloy steel with precision machining and heat treatment, our components ensure efficient power transfer and long-term reliability.
No. | Product Name | Specification | Applicable Model | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Transmission Component | ALLISON754 6838243 | XJ250 | Gear: 20CrMnTi (carburizing & quenching); Shaft: 42CrMo alloy steel | 1. Gear wear from high-load power transmission; 2. Bearing damage from insufficient lubrication. | 1. Use specified transmission oil and replace regularly; 2. Monitor oil level and temperature during operation. |
Procurement Guide
All parts in this catalog are engineered to meet API Spec 7K and GB/T 30555-2014 standards, ensuring perfect compatibility with XJ/ZJ series workover rigs. Whether you need urgent replacement parts to minimize downtime or regular maintenance components to extend equipment life, we provide reliable, high-performance solutions. Contact our professional team with your specific rig model and part requirements, and we will offer tailored procurement support to meet your operational needs.
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