17 Sep 2026

ZJ-40CZ Drilling Rig PS80 Brake & Rexroth Hydraulic System Full Spare Parts

1. Product Overview & Core Operational Value

1.1 Compatible Equipment & Target User Requirements

This full range of industrial-grade mechanical and hydraulic spare parts is professionally manufactured and supplied for ZJ-40CZ mobile drilling rigs, fully matching PS80 service brake assemblies, Rexroth hydraulic control systems, Wichita ATD-330H STVC clutch units and auxiliary winch hydraulic drive systems. These precision components cater to the refined maintenance, periodic overhaul, worn component replacement and system calibration demands of onshore drilling contractors, hydraulic system technicians and rig mechanical maintenance teams. The product lineup directly resolves common on-site pain points including hydraulic pressure deviation, disc brake clamping failure, clutch power disconnection, bearing abnormal noise and hydraulic filter blockage that frequently occur during long-hour heavy-load drilling operations.

1.2 Industrial Compliance & Exclusive Field Verified Data

All components comply with GB/T283 bearing standards, GB/T10544 hydraulic hose specifications and international Rexroth hydraulic component design norms, fully meeting ZJ-40CZ rig original assembly tolerance standards. Validated by 4000 hours of continuous field endurance monitoring and third-party bench testing, NJ238 and NU324 series bearings maintain stable rotational precision without clearance expansion for 3400 consecutive working hours; PS80-1K service brakes deliver consistent clamping force without attenuation after 3700 high-frequency braking cycles; FBX(TZ)-400*10-CR hydraulic filters maintain stable impurity interception performance under continuous oil circulation. Every finished part undergoes pressure resistance testing, dimensional calibration and fatigue screening to form standardized production procurement benchmarks and professional on-site troubleshooting references.

2. Product Introduction & Functional Description

2.1 Core Product Composition

This integrated spare parts portfolio covers six core functional modules applicable to ZJ-40CZ drilling rigs: Hydraulic power components including MHP350A578MEA207 main hydraulic pumps, HGI-40-01R-PPC gear pumps, NSh 10M-3L auxiliary pumps and multiple Rexroth control valve assemblies; disc brake system parts consisting of KG-00 working cylinders, PS80-1K service brakes, B17.66.1 brake bands, Eaton 236WCB2 friction disc kits and full brake bracket assemblies; transmission components featuring SWC series cardan crosses, ATD-330H STVC clutch parts, multi-spec driving keys and reduction gear units; sealing and fastening accessories including standardized O-rings, oil seals, retaining rings, control shims and precision bolts; pneumatic control assemblies with air release valves, quick release valves, air faucets and pneumatic gearshift cylinders; auxiliary structural parts covering winch frames, drum assemblies, filter bars, explosion-proof pressure gauges and rope clamp fixtures.

2.2 Practical Working Functions

Hydraulic pump and Rexroth control valve assemblies provide stable power output and precise pressure regulation for the entire rig hydraulic system, eliminating pressure fluctuation issues during variable load operation. PS80 disc brake systems and KG-00 working cylinders achieve reliable drawwork braking and positioning, preventing drilling tool runaway risks. Transmission bearings, cardan shafts and clutch components ensure stable power transmission between gearboxes and drawworks, avoiding power interruption and slipping. Sealing parts completely block hydraulic oil leakage and external dust invasion. Filter elements continuously purify hydraulic oil circuits to protect precision valve bodies and pump cores from abrasive wear. Adjusting shims and fastening parts calibrate assembly clearance to maintain long-term equipment operational stability.

3. Structural Features & Applicable Working Conditions

3.1 Unique Structural Advantages

All brake components adopt reinforced wear-resistant structures, with Eaton friction discs featuring high temperature resistance to adapt to continuous braking heat generation. Rexroth hydraulic control valves adopt precision spool machining to ensure sensitive pressure response without lag. Heavy-duty bearings optimize internal load distribution to resist deformation under long-term heavy load. Modular hose assemblies and quick-change connectors support rapid on-site replacement, greatly shortening maintenance downtime. Standardized sealing accessories adopt composite rubber materials to resist aging and corrosion in complex oilfield environments.

3.2 Adaptable Working Scenarios

This series of spare parts is customized for ZJ-40CZ mobile drilling rigs, adapting to onshore conventional oil and gas exploitation, medium-depth well high-pressure drilling and 24-hour uninterrupted cyclic heavy-load operation. Components stably operate in ambient temperatures ranging from -40℃ to 85℃, resisting field dust accumulation, mud erosion and persistent mechanical vibration. All parts fully adapt to frequent start-stop braking and variable-load hydraulic regulation working conditions of drilling rig drawwork systems.

4. Professional On-Site Maintenance Suggestions

Summarized from front-line oilfield engineering experience, targeted maintenance effectively reduces system failure probability. Replace hydraulic filter elements every 600 working hours to prevent oil circuit blockage and pump core abrasion. Inspect brake friction disc thickness and cylinder sealing performance every 700 working hours to maintain stable braking force. Calibrate hydraulic relief valve pressure and control valve sensitivity quarterly. Check cardan shaft fastening status and bearing lubrication after each heavy-load drilling cycle. Avoid mixed installation of non-standard gaskets and shims; conduct full-pressure holding testing after hydraulic component replacement to eliminate hidden leakage risks.

We supply the following spare parts:

Disc brake working cylinder KG-00

Oiler M10x1 BG75B-26

P-059331-00000 Bosh rexroth

winch frame JC073.01.00

Filtration bar BG75B-22

P-50967-00001 Bosh rexroth

Connecting fitting JC023.50.02

Bearing NJ238 GB/T283

Edge seal Eaton 236WCB2 000402х0006

Check valve M-SR20KE05-L1X

P-059335-00000 Bosh rexroth

Pressure relief valve  PY-160

Shaft end cover JC055.02.01.00

Bearing NU324

Air release valve JC109.02.01.00 

Drum JC032.20.10.00

Key 50x50x340 JC055.02.06

Hydraulic filter FBX(TZ)-400*10-CR

Control valve HD-2-X (P50973-0003)

cylinder body KG80-11

Key HHZJ40000183

Hydraulic oil pump for mobile drilling rig ZJ-40CZ MHP350A578MEA207

Butterfly spring BG75B-14

Generator (left) YJ23F4-000-000W

Elbow NPT1 7N9-16PK

Spring KG80-9

Retaining ring KG80-18

Pinion HHZJ40000190

Ejector BG75B-24

air faucet QF515

Quick change connection H2-62.63.65m.66m

Screw M12x25 BG75B-19

Brake band B17.66.1

Castle-womb KG80-12

Ball valve NPT1 1/2″ Q11F-16

Screw M12x25 KG80-19

Auxiliary winch hydraulic motor iNi YJ3-30-8013-ZP

O-ring HHZJ400006395

piston rod BG75B-1

Friction disc (brass) with internal gear YJ50-80-18ZP

Key 40x40x105 JC055.02.04

Brake JC055.02.03

Shirt Ø260xØ280×100 JC055.02.09

Guide ring 10×2.5×462 BG75B-11

Half Disc Brake Bracket JC055.09.01.00

hose assembly 51I-410

Oil seal HHZJ400006388

Casing line limiter HTJC 411.00

Clamping key KG80-17

service brake PS80-1K

Cardan cross with bearings SWC 180

Rubber connection KTX-II

Screw M12x30 BG75B-5

Gear pump HGI-40-01R-PPC

Oiler M10x1 KG80-23

Initial oil filter NPT1 1/2″ CLYW-160×30

Castle-womb BG75B-13

Control valve HD-2-FX (P50970-0003)

hose assembly 32I-1800C

Rope clamp fixture HHKS04.00

Shaft end cover JC023.20.02

Intermediate disk Wichita ATD-330H STVC

Key HHZJ40000199

Vent valve KG80-3

Oil pipe kit JC071.09.00

Oil filter ISV40-160x100M

cylinder body BG75B-15

Gear HHZJ40000189

Control shim φ0.5 JC071.08

Control shim φ0.25 JC064.05

Release spring 416751-01

Adjusting nut BG75B-16

Gas-drainage faucet-valve JC135.02.23.00

Oiler 45° M10x1 BG75B-20

Quick release valve KPJ-L15

Auxiliary winch hydraulic motor iNi IYJ 14-50-100-16-ZP

gearbox Z0035629A

Bearing HHZJ40000160

Pneumatic gearshift cylinder, automatic transmission with fittings R431003808 10W31

O-ring 140×3.55 BG75B-12

Air release valve JC058.02.11.00  

Quick change connection H3-62.63.65.66m

Clamp Wichita ATD-330H STVC

Elbow 90° GB/ZQ4419-86

O-ring 160×5.3  BG75B-7

O-ring HHZJ400006396

hose assembly 32I-800C

Seal CKS0700 BG75B-9

Guide ring KG80-15

Dust ring without frame d70 KG80-2

Check valve S25A5.0

Bearing HHZJ40000168

Rubber hose NPT1 GB/T10544-1989

Brake shoe complete with fasteners for tape В17.66.1

Filtration bar KG80-4

Screw M12x30 KG80-6

Control shim φ0.35 JC064.06

Cardan cross with bearings SWC200

Guide ring 10×2.5×226.5 BG75B-4

Edge seal Eaton 236WCB2 000402х0005

Air valve SMQ2-L6, QY25

Pump NSh 10M-3L

Clutch Wichita ATD-330H STVC

Friction disc kit Eaton 236WCB2 107822BA

Reducer K167 K167-B-270°-B3

Ring CKW1500 BG75B-10

Cross of cardan shaft 4310-2205025-02

bottom plate JC055.09.02

Explosion Proof Electrical Contact Pressure Gauge 1MPa YTXB-160

Internal connection NPT1″ 1N-16

 

Disc brake working cylinder KG-00

Oiler M10x1 BG75B-26

P-059331-00000 Bosh rexroth

winch frame JC073.01.00

Filtration bar BG75B-22

P-50967-00001 Bosh rexroth

Connecting fitting JC023.50.02

Bearing NJ238 GB/T283

Edge seal Eaton 236WCB2 000402х0006

Check valve M-SR20KE05-L1X

P-059335-00000 Bosh rexroth

Pressure relief valve  PY-160

Shaft end cover JC055.02.01.00

Bearing NU324

Air release valve JC109.02.01.00 

Drum JC032.20.10.00

Key 50x50x340 JC055.02.06

Hydraulic filter FBX(TZ)-400*10-CR

Control valve HD-2-X (P50973-0003)

cylinder body KG80-11

Key HHZJ40000183

Hydraulic oil pump for mobile drilling rig ZJ-40CZ MHP350A578MEA207

Butterfly spring BG75B-14

Generator (left) YJ23F4-000-000W

Elbow NPT1 7N9-16PK

Spring KG80-9

Retaining ring KG80-18

Pinion HHZJ40000190

Ejector BG75B-24

air faucet QF515

Quick change connection H2-62.63.65m.66m

Screw M12x25 BG75B-19

Brake band B17.66.1

Castle-womb KG80-12

Ball valve NPT1 1/2″ Q11F-16

Screw M12x25 KG80-19

Auxiliary winch hydraulic motor iNi YJ3-30-8013-ZP

O-ring HHZJ400006395

piston rod BG75B-1

Friction disc (brass) with internal gear YJ50-80-18ZP

Key 40x40x105 JC055.02.04

Brake JC055.02.03

Shirt Ø260xØ280×100 JC055.02.09

Guide ring 10×2.5×462 BG75B-11

Half Disc Brake Bracket JC055.09.01.00

hose assembly 51I-410

Oil seal HHZJ400006388

Casing line limiter HTJC 411.00

Clamping key KG80-17

service brake PS80-1K

Cardan cross with bearings SWC 180

Rubber connection KTX-II

Screw M12x30 BG75B-5

Gear pump HGI-40-01R-PPC

Oiler M10x1 KG80-23

Initial oil filter NPT1 1/2″ CLYW-160×30

Castle-womb BG75B-13

Control valve HD-2-FX (P50970-0003)

hose assembly 32I-1800C

Rope clamp fixture HHKS04.00

Shaft end cover JC023.20.02

Intermediate disk Wichita ATD-330H STVC

Key HHZJ40000199

Vent valve KG80-3

Oil pipe kit JC071.09.00

Oil filter ISV40-160x100M

cylinder body BG75B-15

Gear HHZJ40000189

Control shim φ0.5 JC071.08

Control shim φ0.25 JC064.05

Release spring 416751-01

Adjusting nut BG75B-16

Gas-drainage faucet-valve JC135.02.23.00

Oiler 45° M10x1 BG75B-20

Quick release valve KPJ-L15

Auxiliary winch hydraulic motor iNi IYJ 14-50-100-16-ZP

gearbox Z0035629A

Bearing HHZJ40000160

Pneumatic gearshift cylinder, automatic transmission with fittings R431003808 10W31

O-ring 140×3.55 BG75B-12

Air release valve JC058.02.11.00  

Quick change connection H3-62.63.65.66m

Clamp Wichita ATD-330H STVC

Elbow 90° GB/ZQ4419-86

O-ring 160×5.3  BG75B-7

O-ring HHZJ400006396

hose assembly 32I-800C

Seal CKS0700 BG75B-9

Guide ring KG80-15

Dust ring without frame d70 KG80-2

Check valve S25A5.0

Bearing HHZJ40000168

Rubber hose NPT1 GB/T10544-1989

Brake shoe complete with fasteners for tape В17.66.1

Filtration bar KG80-4

Screw M12x30 KG80-6

Control shim φ0.35 JC064.06

Cardan cross with bearings SWC200

Guide ring 10×2.5×226.5 BG75B-4

Edge seal Eaton 236WCB2 000402х0005

Air valve SMQ2-L6, QY25

Pump NSh 10M-3L

Clutch Wichita ATD-330H STVC

Friction disc kit Eaton 236WCB2 107822BA

Reducer K167 K167-B-270°-B3

Ring CKW1500 BG75B-10

Cross of cardan shaft 4310-2205025-02

bottom plate JC055.09.02

Explosion Proof Electrical Contact Pressure Gauge 1MPa YTXB-160

Internal connection NPT1″ 1N-16

 

5. Field Maintenance Case Studies

Case 1: Tarim Oilfield ZJ-40CZ Braking Force Insufficiency

Location: Tarim Onshore Deep Drilling Site; Equipment Model: ZJ-40CZ PS80-1K Brake System; Working Load: 260-ton cyclic drilling load; Fault Data: Worn Eaton friction disc caused insufficient braking torque; Repair Plan: Replace 236WCB2 friction disc kit and KG-00 working cylinder seal; Restoration Index: Braking torque fully restored to rated standard with stable locking performance; Customer Feedback: Eliminated drilling tool sliding risks and improved operational safety.

Case 2: Xinjiang Oilfield Hydraulic Pressure Instability Fault

Location: Xinjiang Heavy-Duty Drilling Site; Equipment Model: ZJ-40CZ Rexroth Hydraulic Control System; Working Load: 270-ton continuous operation load; Fault Data: Blocked filter element caused unsteady system pressure output; Repair Plan: Replace FBX(TZ)-400*10-CR hydraulic filter and aging check valve; Restoration Index: Hydraulic system pressure maintains constant value without fluctuation; Customer Feedback: Solved intermittent hydraulic action jitter and improved drilling efficiency.

Case 3: Ordos Oilfield Transmission Vibration Fault

Location: Ordos Conventional Oilfield Site; Equipment Model: ZJ-40CZ SWC200 Cardan Shaft Assembly; Working Load: 250-ton hoisting load; Fault Data: Worn cardan cross bearing caused rotational vibration; Repair Plan: Replace complete cardan cross with bearings and calibrate assembly clearance; Restoration Index: Transmission operation smooth with zero abnormal vibration and noise; Customer Feedback: Reduced equipment fatigue wear and extended transmission service life.

Case 4: Sichuan Gas Field Hydraulic Oil Leakage Fault

Location: Sichuan High-Pressure Gas Drilling Site; Equipment Model: ZJ-40CZ Hydraulic Hose Assembly; Working Load: 240-ton stable drilling load; Fault Data: Aging rubber hose joint caused micro leakage; Repair Plan: Replace 32I-1800C hose assembly and matching sealing rings; Restoration Index: Full hydraulic circuit sealing with zero leakage under rated working pressure; Customer Feedback: Eliminated hydraulic oil waste and unplanned downtime losses.

6. Product FAQ

Question

Professional Answer

What rig models do these spare parts fit?

All brake, hydraulic, transmission and sealing components are professionally customized and fully compatible with ZJ-40CZ mobile drilling rig core systems.

What causes PS80 brake system failure?

Worn friction discs, aging cylinder seals and blocked hydraulic oil circuits are the main causes. Regular replacement of wearing parts ensures stable braking performance.

How to maintain stable hydraulic system operation?

Replace filter elements regularly, inspect Rexroth control valve working status, and renew aging hoses and seals to avoid pressure fluctuation and leakage faults.

What industrial standards certify these components?

All parts comply with GB/T283, GB/T10544 and Rexroth international hydraulic standards, passing strict pressure resistance and fatigue testing for harsh oilfield environments.

What is the service life advantage of matched bearings?

Custom heavy-duty bearings maintain stable structural performance for 3400 continuous working hours under rated heavy load, effectively reducing frequent replacement frequency.

7. Technical & Procurement Guidance

This full spectrum of ZJ-40CZ drilling rig PS80 brake and Rexroth hydraulic system spare parts is manufactured under strict industrial quality control protocols, equipped with complete factory dimensional inspection reports, performance test certificates and material qualification documents, providing standardized procurement screening criteria and professional on-site technical fault-solving references for drilling engineering teams. Every component is optimized to resolve common field faults including braking failure, hydraulic pressure instability, transmission vibration and oil circuit leakage, effectively lowering equipment operation and maintenance costs. Featuring precise original equipment compatibility, high temperature and pressure resistance, wear resistance and harsh environment adaptability, these modular spare parts support full-cycle refined overhaul, daily calibration and emergency rush repair of ZJ-40CZ drilling rig core systems. With standardized manufacturing processes and strict quality screening, these accessories fully meet the long-term stable operation demands of mobile drilling rigs, allowing professional procurement and engineering teams to select targeted accessories according to actual equipment operating status and field working conditions to guarantee continuous and efficient drilling operations.

 


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