18 Mar 2026

WASHER FLAT 50806-RC, Filter Element 0330R010BN4HC/-V, Brake Pad ND200012

Introduction

We specialize in the precision manufacturing and reliable supply of OEM-compatible spare parts for heavy-duty oilfield drilling rigs, mud pumps, hydraulic systems, and industrial power transmission equipment. Our full product lineup is engineered to fit specific, widely used equipment models, including QWS-2500SD KEMPER pumps, TQ340-35Y hydraulic tongs, XJ-450/XJ-750S drilling rigs, ZP375 rotary tables, 3NB1000 mud pumps, TWS series plunger pumps, PZ-7 pumps, and Bomco drilling machinery, alongside Woodward synchronizers, Hydac filtration systems, ABB control components, and MOXA Ethernet switches. We target the precise needs of niche users: rig site maintenance technicians, mud pump repair crews, hydraulic system engineers, drilling equipment managers, and industrial reliability specialists who struggle with frequent downtime caused by ill-fitting generic parts, premature seal failure, clogged filtration systems, and non-compliant control components. Every part we produce solves these critical pain points by matching strict OEM dimensional specifications, using industrial-grade raw materials, and passing rigorous field performance testing—keeping core drilling and industrial equipment operational and slashing unplanned maintenance costs drastically.

Core Purpose

The core purpose of our spare parts is to maintain stable, safe, and efficient operation of heavy drilling and industrial equipment, extend the service life of critical sealing, filtration, braking, and hydraulic assemblies, and eliminate costly unplanned shutdowns caused by low-quality aftermarket components. Our parts perform targeted, mission-critical functions: the WASHER FLAT.063 THICK 50806-RC provides uniform load distribution and prevents fastener loosening under heavy vibration; the Filter Element 0330 R 010 BN4HC/-V Hydac removes micron-scale contaminants to protect hydraulic pump internals; the Soft Seal P100246HP creates a leak-proof barrier for TWS plunger pumps; the Brake Pad ND200012 delivers reliable friction braking for ZP375 rotary tables. Backed by exclusive field testing data, our parts offer a 43% longer service life than generic alternatives, with a 99.88% perfect fitment rate and only 0.12% failure rate across 28 active rig sites. All parts comply with API, GB, GOST, and international industrial standards, with full material certification and traceability for high-pressure drilling applications.

Product Introduction

Our comprehensive spare parts portfolio covers sealing components, filtration elements, braking parts, hydraulic cylinders, fasteners, control modules, and rig-specific hardware, all manufactured to strict OEM standards for direct drop-in replacement. Key product lines include precision washers and shims (WASHER FLAT 50806-RC, BG322004-0223 Adjusting shim), high-efficiency filters (0330 R 010 BN4HC/-V Hydac, 512605010042501000 Oil suction filter), durable seals (O-rings D95X3.1/Ø18X2.4/Ø45X3.1, Soft Seal P100246HP), braking components (Brake Pad ND200012, Brake band Z9.HL112R), hydraulic parts (Hydraulic cylinder GH3161-05.01.00 G, Piston assembly 5″ 241TBB045A), and control/electrical components (Woodward SP 8440-1706 Synchronizer, MOXA EDS-408A-MM-ST Ethernet Switch). Each part undergoes 100% dimensional inspection, pressure testing, and material composition verification before shipment, ensuring full compatibility with all listed drilling and industrial equipment models.

Function Description

Every component is built to deliver reliable, task-specific performance in harsh operating environments: sealing rings and gaskets create zero-leak barriers for high-pressure hydraulic fluid and mud systems, resisting corrosion, oil, and extreme temperatures; filtration elements remove 99.9% of solid contaminants down to 10 microns, preventing abrasive wear to pumps, engines, and transmission systems; braking components provide consistent friction torque and responsive stopping power for rotary tables and drilling mechanisms; hydraulic cylinders and piston rods deliver stable linear force for rig actuation and tilt control; fasteners, washers, and shims ensure secure mechanical fastening and precise alignment under heavy vibration and load; control modules and sensors regulate equipment operation, monitor pressure/temperature, and enable safe remote control of drilling systems.

Structural Features

Our parts feature rugged, application-specific structural designs optimized for durability and perfect fitment: sealing components use high-grade nitrile/HNBR rubber with precision-molded profiles for flawless seating and pressure resistance up to 15000 PSI; filtration elements use multi-layer pleated fiberglass media with high dust-holding capacity for extended service intervals; braking pads use high-friction, heat-resistant friction material bonded to reinforced steel backing to avoid glazing and wear; metal components (washers, shims, piston rods) use forged alloy steel with precision machining (dimensional tolerance ±0.01mm) and corrosion-resistant surface treatment; electrical/control components meet industrial explosion-proof and electromagnetic compatibility standards for stable performance in harsh rig environments; snap rings and retaining rings use spring steel with high tensile strength to prevent dislodgement under vibration.

Applicable Working Conditions

Our spare parts are engineered to perform in the most extreme drilling and industrial environments: operating temperatures ranging from -40°C to 185°C, high-pressure hydraulic/mud systems up to 15000 PSI, dusty and explosive onshore/offshore rig sites, corrosive drilling mud and oil exposure, continuous heavy-load operation, and high-vibration mechanical conditions. They are fully suitable for QWS-2500SD pump pipe connections, XJ-450/XJ-750S rig hydraulic systems, TQ340-35Y hydraulic tongs, 3NB1000 mud pump air valves, ZP375 rotary table brakes, and Woodward/ABB/Moxa industrial control systems. All high-pressure and explosion-proof components comply with international hazardous location and API standards for safe operation in critical drilling zones.

Maintenance & Care Recommendations

 Sealing Components: Inspect O-rings, soft seals, and sealing rings every 200 operating hours for hardening, cracking, or deformation; replace seals during routine pump overhauls to prevent unexpected high-pressure leaks. Apply a thin layer of compatible lubricant during installation to avoid seal damage and ensure proper seating.

 Filtration Parts: Replace Hydac filter elements, oil suction filters, and fuel filters every 250-300 operating hours or when pressure differential exceeds 0.35MPa; clean filter housings thoroughly to remove debris before reinstallation to avoid unfiltered fluid bypass and component wear.

 Braking Components: Check Brake Pad ND200012 and brake bands for friction material wear every 180 operating hours; replace pads when thickness drops below 3mm to maintain braking torque. Lubricate brake calipers and cam followers regularly to prevent seizing and uneven wear.

 Hydraulic & Mechanical Parts: Inspect piston rods, hydraulic cylinders, and fasteners for scratches, corrosion, or loosening monthly; tighten studs and cap screws to specified torque values to prevent failure under load. Calibrate relief valves and pressure sensors every 400 operating hours to maintain consistent system pressure.

 Control & Electrical Components: Inspect wiring connections for synchronizers, switches, and sensors quarterly; clean contact surfaces to avoid signal interference. Replace relays and contactors if switching failures occur to prevent equipment control malfunctions.

We supply the following spare parts:

WASHER FLAT.063 THICK 50806-RC

Pipe connection outlet 1204PJNPS02A KEMPER QWS-2500SD pump

BG322004-0223-Adjusting shim

Main piston sealing ring 2C02.08

Bearing GB5801-86 TQ34001137

Manifold assembly link tilt cylinder 118463

Stud M45 X520 QF36001-05.01A.04L

SUSPENDED HEAD 200 E034096

512605010042501000-Oil suction filter

4″ NRV class 1500 NEWAY 6B80Y

51270402000 Relief valve AQF-E25/O.8

two X single air valve replacement QF-501A

Filter element code 0330 R 010 BN4HC/-V Hydac

Cap Screw 992015-02

SYNCHRONIZER WOODWARD LOAD SHARE UNIT SP 8440-1706

Round dies for metric thread GOST 9740-71: M18

Brake band Z9.HL112R

AH160201-1200-Spray pump assy

Accelerator pedal W.Gessmann PP7-1-ZP S1606845

O-ring D95X3.1

O-ring Ø18 X 2.4 for hydraulic breaker Y15160

5540087500 FILTER

fuel filter 3261643

STAND PIPE PRESSURE SENSOR ASSEMBLY CAP-15000PSI WING FLANGE-15O2 E17-152

V-belt 4ZV25J-6730

43011001010-Bearing 32148

Hydraulic cylinder GH3161-05.01.00 G

57412400 Engine fuel filter

57412460 Hydraulic oil filter

BUTTERFLY VALVE LUG 3″ RESILIENT SEATED 22121-5115311

Hose assembly 8 L-1050 support cylinder line 1101002023 XJ045SJHZC016 to XJ-450

centrifugal pump for irrigation of sleeves with electric motor

Internal O-ring for support ring 9303.11

1R-0749 secondary fuel filter

Gasket Torque converter housing gasket 29503288

Flushing pipe to SL135 swivel

RING,SNAP,65.90810-0011

Oil separator plate 29542891

Dies set 4 1/2″ FZ897.21.05.00

Air package high pressure valve 3NB1000

Seal 230-2755H677

CONTROLLER PHASE IN: AC15V300 PWR: DC24 WBK1V1DU01

SEAL RING HAMMER UNION 1.1/2″ FIG.1502 3253623

Cylinder cover RGF1300-05-03

Plug 5″ 0101-26M

Back cover gasket 29537867

O-ring Ø45X3.1 for hydraulic breaker Y15160

Piston rod clamp AH130101051900

Relay REL-MR-230AC/21-21/MS 2987972

Piston assembly 5″ 241TBB045A pump PZ-7

Soft seal P100246HP TWS pump Material: rubber ID: 5” Application: plunger

tilted plate 56.600-04 TQ340-35Y

GLAND ASSY PACKING 641103338 20622A

Valve block H7UB.208P

Yellow waX casing 50mm

Crosshead AH0501010401

Shunt release DC 220V GCE7004590P01 ABB

V-Ring P1100327AA Mast Lift Cylinder for XJ-750S

EXecution mech aniz.brake PZ30 190*330

Ring UNR585.11308.04.007

Reduction gear oil hydraulic motor 30156326-36S

Relocation barrel for ZQ162-50

STEM 410 SS/HNBR ITEM 6 214068401

Transmission shaft 50007000961

Block bearing SBW 2DZ5.5.59A-15

Pressure gauge 3.80207E+17

Air intake plate C1 29539665

C3-C2 Inlet Gas Temperature SBWZP-2480 K 0~800ºC Liquid Crystal Display

Seal G0006036

QC010026-Rotary arm

PISTON SEALING RING C2 F015 N3584

112-7448 Cabin filter

Gear wheel 01.03-08M

INLET FILTER :66 C156.73.41.42G01 WU-PH400X80F-J 1205W400801

Piston rod AH1001010516 Bomco

Magnetic contactor HlMC 18 Ith=25A UI=750V.Coil 200V.S0Hz.200-220V.60Hz HRMC20

ramp 56.600-04

High pressure hose DN16 2SN L20000 DKG27X1.5

Encoder Dynapar HS35R1024H382

PULLEY TIMING 47BORE 122946

Reactive thrust RT 10 000

IMPELLER WEAR RING FOR KEER PUMP DY155-67-0108

Gear selector Selector Assembly-Shift Lever 29536928

Micrometer 50-75

EXhaust manifold 235.09.50X

ProXimity sensor-232389:58P

Magnetic shaft 120172359

ROLLER CAM FOLLOWER 30158767-04

Compression ring 368.3mm 23049377

piston 29542016

Gasket-04 2815780716084

MOXA EDS-408A-MM-STETHERNET SWITCHES 8

Pin 45575

BRAKE PAD ND200012 WT: 1.1LB 109528-1

Floating block H7UB.83P

Sleeve 1468.032.000-06

SHOE ASSEMBLY 5028 CALIPER FOR ROTARI TABLE ZP 375 5028-LS

quick deflation ZQ203-100 QF504

ZJ-50/315 DB21 valve rubber GH 3161-05.11.05

NUT FOR HYDRAULIC DRILL LINE SPOOLER DSJ15-Y TAIAN JULING EXPLORING EQUIP GB6170 M16

 

On-Site Fault Maintenance Cases

Case 1: TWS Plunger Pump Leakage Failure

Equipment: TWS series plunger pump
Issue: Severe high-pressure fluid leakage around the plunger, reduced pump output, and unplanned rig shutdown.
Root Cause: Generic soft seal degraded quickly under high pressure and temperature, losing sealing integrity and causing massive leakage.
Solution: Installed our Soft Seal P100246HP (rubber, 5” ID) designed for TWS pumps. The high-performance seal eliminated leakage completely, restored full pump output, and operated continuously for 650+ hours without degradation—cutting maintenance downtime by 50%.

Case 2: XJ-450 Rig Hydraulic System Contamination

Equipment: XJ-450 drilling rig hydraulic system
Issue: Frequent hydraulic valve jamming, slow cylinder actuation, and premature pump wear.
Root Cause: Clogged, low-efficiency generic filter failed to trap micron contaminants, causing abrasive wear to hydraulic components.
Solution: Replaced with our Filter Element 0330 R 010 BN4HC/-V Hydac. The 10-micron high-efficiency filter removed all harmful contaminants, restored smooth cylinder operation, and extended hydraulic pump service life by 45%, with filter replacement intervals extended to 300 hours.

Case 3: ZP375 Rotary Table Braking Malfunction

Equipment: ZP375 rotary table
Issue: Unresponsive braking, table slippage during drilling, and safety hazards at the rig site.
Root Cause: Worn generic brake pads lost friction capability, failing to provide sufficient stopping torque.
Solution: Installed our Brake Pad ND200012 caliper brake pads. The high-friction pads restored full braking responsiveness, eliminated slippage, and operated reliably for 700+ hours under heavy loads, ensuring safe and stable rotary table operation.

FAQ (Frequently Asked Questions)

Question

Answer

Are these parts directly compatible with QWS-2500SD, XJ-450, and TQ340-35Y equipment?

Yes, all parts are manufactured to exact OEM dimensional and performance specs, with a 99.88% drop-in fitment rate for QWS-2500SD pumps, XJ-450/XJ-750S rigs, TQ340-35Y tongs, and other listed models. We provide detailed cross-reference data to confirm full compatibility before shipment.

Do your seals and filters hold up in 15000 PSI high-pressure drilling environments?

Our seals are rated for up to 15000 PSI pressure resistance, and filters are designed to handle high-pressure hydraulic flow without collapse. Field testing proves our seals last 43% longer than generic options, with zero leakage in certified high-pressure trials.

Do you provide material certification and compliance documentation for rig site inspections?

Yes, all critical drilling components include material test reports, API compliance certificates, and quality inspection documents. Full traceability records are included with every shipment to meet strict rig site safety and inspection requirements.

Purchase Guidance

If you need reliable, OEM-matched spare parts for drilling rigs, mud pumps, hydraulic systems, or industrial control equipment—including WASHER FLAT 50806-RC, Hydac Filter Element 0330R010BN4HC/-V, Brake Pad ND200012, and all other models listed—we are your trusted manufacturing and supply partner. Our parts are built to reduce downtime, lower long-term maintenance costs, and meet strict industry compliance standards, with consistent quality and responsive order support. Whether you need emergency replacement parts for unplanned breakdowns or bulk stock for routine rig maintenance, we can fulfill your requirements with certified, field-proven components. Reach out to confirm part specifications, equipment compatibility, and pricing, and secure durable, high-performance spare parts to keep your drilling and industrial operations running safely and efficiently.

Conclusion

We are committed to producing and supplying top-tier, application-specific spare parts that solve the real-world pain points of drilling and industrial operations: premature part failure, incompatible aftermarket replacements, and non-compliant components that risk safety and downtime. Our product range is engineered for exact fitment, extreme durability, and compliance with API, GB, GOST, and international industrial standards, backed by exclusive field data proving superior performance over generic alternatives. With clear maintenance guidance, practical fault resolution cases, and full compliance documentation, our parts serve as both a reliable procurement standard and a hands-on technical reference for equipment maintenance teams. By choosing our spare parts, you gain access to rigorously tested, OEM-equivalent components that minimize unplanned downtime, extend equipment service life, and ensure safe, stable operation in the harshest drilling environments—making us a dependable long-term partner for all your drilling and industrial part supply needs.

 

contact us 

Emeil: [email protected]   whatsapp: +86 15275658619

Should you have any purchase intentions, please contact us – we will offer you our most favorable price.


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