Workover Rig Parts Catalog (XJ150/XJ250/XJ350/XJ40/XJ40T/XJ450/XJ550/XJ650/XJ70Z-2/XJ70Z-3/XJ750/ZJ2

1

CYC-8B Hydraulic Cylinder

CYC-8B

XJ70Z-2

Cylinder barrel: 42CrMo alloy steel (quenched & tempered); Piston rod: 40Cr (hard chrome plating); Seals: Fluororubber (FKM)

1. Seal wear from frequent high-pressure reciprocation; 2. Piston rod damage by foreign object impact at workover sites.

1. Install a protective sleeve for the piston rod; 2. Inspect seal integrity every 50 working hours and replace if oil seepage occurs.

2

CYC-8B Hydraulic Cylinder

CYC-8B BL4209

XJ70Z-2

Cylinder barrel: 42CrMo alloy steel; Piston rod: 40Cr (hard chrome plating); BL4209 fitting: 40Cr; Seals: FKM

1. Wear of BL4209 fitting from long-term cooperative operation; 2. Seal aging under alternating high-low temperature environments.

1. Check fitting clearance between cylinder and BL4209 monthly; 2. Pre-replace seals before entering high-temperature work seasons.

3

CYC-8B Hydraulic Cylinder

CYC-8B 14×50

XJ40T

Cylinder barrel: 42CrMo alloy steel; Piston rod: 40Cr (nitriding treatment); Seals: FKM

1. Nitriding layer wear on piston rod from high-pressure oil flow; 2. Cylinder corrosion from drilling fluid immersion.

1. Maintain hydraulic oil cleanliness at NAS 8 grade; 2. Clean cylinder surface post-operation and apply anti-corrosion oil.

4

CYC-8B2080 Hydraulic Cylinder

CYC-8B2080

Universal (XJ series compatible)

Cylinder barrel: 45# carbon steel (heat treated); Piston rod: 40Cr (chrome plating); Seals: Polyurethane (PU)

1. Piston wear from uneven force distribution; 2. Seal damage by contaminant particles in hydraulic oil.

1. Ensure uniform load application during operation; 2. Install a 10μm high-precision filter in the oil circuit ahead of the cylinder.

5

CYC-8B Hydraulic Cylinder

CYC-8B

XJ70Z-3

Cylinder barrel: 42CrMo alloy steel; Piston rod: 40Cr (hard chrome plating); Seals: FKM

1. Seal wear from frequent reciprocation; 2. Piston rod scuffing by sand and gravel in desert oilfield environments.

1. Regularly polish minor scratches on piston rod; 2. Equip with dust-proof cover for outdoor operations.

6

CYC-8B Hydraulic Cylinder

CYC-8B

XJ40T

Cylinder barrel: 42CrMo alloy steel; Piston rod: 40Cr (hard chrome plating); Seals: FKM

1. Seal leakage from pressure fluctuations during manual operation; 2. Piston rod corrosion in humid coastal oilfield environments.

1. Operate within rated pressure range to avoid sudden surges; 2. Use marine-grade anti-corrosion paint for coastal applications.

1

Directional Control Valve

4W-7190-03

XJ350

Valve body: 45# carbon steel; Valve core: 304 stainless steel; Seals: Nitrile Butadiene Rubber (NBR)

1. Seal wear from frequent switching; 2. Valve core jamming by drilling fluid splashing and contamination.

1. Reduce unnecessary frequent switching; 2. Install protective baffle to prevent drilling fluid intrusion.

2

Pressure Relief Valve

DZ500 DB10-2-30

XJ650

Valve body: 42CrMo alloy steel; Valve core: 40Cr (quenched & tempered); Spring: 60Si2Mn

1. Spring fatigue from frequent pressure adjustment; 2. Valve seat wear from high-pressure oil flow impact.

1. Avoid drastic pressure adjustments; 2. Calibrate pressure relief value quarterly per API Spec 7K.

3

Safety Valve

SAF-00

XJ750

Valve body: 42CrMo alloy steel; Valve core: 40Cr; Spring: 60Si2Mn

1. Spring fatigue from long-term pressure bearing; 2. Valve core corrosion in humid environments.

1. Conduct regular pressure calibration per industry standards; 2. Apply anti-oxidation agent to valve core annually.

4

Flow Control Valve

YF-32H2

XJ750

Valve body: 42CrMo alloy steel; Valve core: 40Cr (nitriding treatment); Seals: FKM

1. Nitriding layer peeling on valve core from high-velocity oil flow; 2. Spool jamming by metal debris in hydraulic oil.

1. Install 5μm high-precision filter at valve inlet; 2. Inspect nitriding layer integrity every 6 months.

5

Directional Control Valve

DZ500 FD12

XJ650

Valve body: 45# carbon steel; Valve core: 40Cr; Seals: NBR

1. Valve core wear from frequent switching; 2. Seal leakage from high-temperature hydraulic oil.

1. Reduce idle switching operations; 2. Monitor hydraulic oil temperature and keep below 80℃.

6

Pressure Control Valve

DZ500 RVP10

XJ650

Valve body: 42CrMo alloy steel; Valve core: 316 stainless steel; Seals: FKM

1. Valve seat wear from long-term oil flow scouring; 2. Valve body corrosion in acidic oilfield environments.

1. Regularly inspect valve seat wear and replace if needed; 2. Use acid-resistant anti-corrosion coating for acidic work areas.

1

Filter Element

1R0716

XJ550

Filter paper: Glass fiber; Housing: Aluminum alloy (anodized)

1. Clogging from long-term accumulation of hydraulic oil contaminants; 2. Filter paper damage from sudden pressure surges.

1. Replace filter element every 250 working hours or when pressure difference exceeds 0.3MPa; 2. Install pressure relief valve in filtration system.

1

5T Hydraulic Winch

5T

ZJ20

Winch drum: 42CrMo alloy steel; Gear: 20CrMnTi (carburizing & quenching); Frame: Q355B carbon steel

1. Gear wear from heavy-load hoisting; 2. Wire rope fatigue from repeated bending and friction.

1. Strictly abide by rated load capacity; 2. Inspect wire rope wear weekly and replace if wear rate exceeds 10%.

2

Hydraulic Winch Accessory

JY246.4.1

XJ750

Main body: 45# carbon steel (heat treated); Fasteners: 40Cr alloy steel

1. Wear of connecting parts from winch vibration; 2. Corrosion from outdoor wind and rain.

1. Lubricate connecting parts with lithium-based grease monthly; 2. Apply anti-corrosion paint to surface annually.

1

Threaded Joint

M16×1.5-Z13/8"QBJ6011603

XJ650

316L stainless steel

1. Thread wear from repeated assembly/disassembly; 2. Corrosion from drilling fluid with chemical additives.

1. Use torque wrench to tighten to specified torque; 2. Apply anti-seize agent to threads before installation.

1

Structural Component

Y(3)74/446

XJ750

45# carbon steel (quenched & tempered)

1. Wear from high-frequency vibration during operation; 2. Corrosion from humid air in mountainous oilfields.

1. Install anti-vibration pads at connection points; 2. Apply anti-corrosion grease to surface every 3 months.

2

Structural Component

IA-193

XJ450

Q355B carbon steel (welded, sandblasted & painted)

1. Weld seam fatigue cracking from long-term load bearing; 2. Paint peeling from outdoor weathering.

1. Conduct non-destructive testing on weld seams every 6 months; 2. Touch up paint regularly per corrosion conditions.

3

Structural Component

W0000005XB

XJ650

42CrMo alloy steel

1. Fatigue deformation from cyclic loads; 2. Surface wear from contact with other components.

1. Operate within rated load range; 2. Lubricate contact surfaces with high-pressure grease monthly.

4

Structural Component

1117826

XJ650

Q355B carbon steel

1. Corrosion from drilling fluid splashing; 2. Deformation from impact during rig relocation.

1. Clean surface after each use; 2. Install protective buffers during transportation.

5

Structural Component

Y1282

XJ250

45# carbon steel (heat treated)

1. Wear from high-frequency vibration; 2. Corrosion in humid underground work areas.

1. Install anti-vibration pads; 2. Use moisture-proof anti-corrosion coating.

1

Electrical Component

9N3367

XJ250

Shell: ABS plastic (flame-retardant); Internal components: Copper alloy

1. Plastic aging from outdoor UV radiation; 2. Contact oxidation in humid air.

1. Install protective cover to avoid direct sunlight; 2. Clean contact points with alcohol regularly.

2

Electrical Sensor

ATD-324-H

XJ550

Shell: 304 stainless steel; Sensing element: Silicon semiconductor

1. Sensing element damage from vibration; 2. Shell corrosion from drilling fluid.

1. Install with shock-absorbing brackets; 2. Seal connection port with waterproof tape.

3

Electrical Connector

J-R10PH-MK

XJ150

Shell: Aluminum alloy (anodized); Contact pin: Silver-plated copper

1. Silver plating wear from frequent plugging/unplugging; 2. Connector loosening from vibration.

1. Minimize unnecessary plugging/unplugging; 2. Use locking fasteners to secure connector.

4

Electrical Component

9X-9720

XJ350

Shell: ABS plastic; Internal wiring: Copper core with PVC insulation

1. Insulation layer damage from friction; 2. Short circuit from dust accumulation.

1. Use cable protectors to avoid friction; 2. Clean shell surface regularly.

5

Electrical Component

J-4N-8216

XJ350

Shell: 304 stainless steel; Internal components: Copper alloy

1. Shell corrosion in offshore saltwater environments; 2. Connection loosening from vibration.

1. Use marine-grade anti-corrosion treatment; 2. Tighten connections monthly.

6

Electrical Component

J-N-6657

XJ350

Shell: ABS plastic; Internal components: Copper alloy

1. Moisture intrusion leading to short circuit; 2. Plastic deformation from high temperature.

1. Check sealing performance regularly; 2. Avoid installation near high-temperature components.

7

Electrical Component

VA35-55055

ZJ20

Shell: Aluminum alloy; Internal components: Silver-plated copper

1. Silver plating oxidation; 2. Shell corrosion from humid air.

1. Apply anti-oxidation agent to contact points; 2. Paint shell annually.

1

High-Pressure Pump Component

2000 SPM-105Map 4"

Universal (XJ/ZJ series compatible)

Impeller: High-chromium alloy; Pump body: 42CrMo alloy steel; Seals: FKM

1. Impeller wear from fluid containing solid particles; 2. Seal leakage under high pressure and temperature.

1. Install pre-filter to remove large particles; 2. Replace seals every 500 working hours.

2

Hydraulic Pump

CB-HP80

XJ40

Pump core: 40Cr (nitriding treatment); Pump housing: 45# carbon steel; Seals: PU

1. Pump core wear from high-pressure oil flow; 2. Housing corrosion in humid environments.

1. Use specified hydraulic oil and replace regularly; 2. Apply anti-corrosion paint to housing exterior.

3

Hydraulic Pump

CB-HP100

XJ40

Pump core: 40Cr (nitriding treatment); Pump housing: 45# carbon steel; Seals: PU

1. Seal wear from frequent start-stop cycles; 2. Pump core damage from hydraulic oil contamination.

1. Reduce frequent start-stop operations; 2. Maintain hydraulic oil cleanliness at NAS 7 grade.

1

Engine Assembly Component

BF8L413F

XJ250

Cylinder liner: Boron cast iron; Piston: Heat-resistant aluminum alloy; Connecting rod: 42CrMo alloy steel

1. Cylinder liner wear from dust in intake air; 2. Piston fatigue under high-temperature operation.

1. Regularly replace air filters; 2. Monitor engine temperature and avoid overheating.