BK, YX, PSZ75 Series Hydraulic Brake Caliper and TK30 Control System Core Components

1. Core Purpose & Target User Requirements

This complete range of BK caliper mechanical parts, YX sealing and guide accessories and PSZ75 series structural fasteners is professionally manufactured to match oilfield drilling rigs and workover rig hydraulic brake systems integrated with TK30 control systems and 90L hydraulic tank units. It serves professional end users including field mechanical maintenance crews, equipment overhaul engineers and industrial parts procurement personnel. The core purpose of this component suite is to resolve recurring field pain points such as hydraulic caliper cylinder leakage, guide sleeve jamming, braking gap deviation, unresponsive emergency brake triggering and contaminated hydraulic oil circulation under long-duration heavy-load cyclic operation. All components comply with GB national mechanical standards and JB hydraulic pipeline specifications, with verified operational stability after 9300 hours of continuous field bench testing. The portfolio provides unified procurement specification benchmarks and practical on-site fault elimination guidelines, meeting dual industry demands for standardized batch replacement and professional hydraulic system technical troubleshooting.

2. Product Overview

This full supporting component set covers all core wearable, sealing, structural and control accessories for integrated hydraulic braking systems. It includes YX series emergency and service calipers, elastic guide sleeves, cylinder back covers, levers, brake pads, steel backings and multi-specification sealing rings, alongside BK series caliper cylinder assemblies, adjustable screws, guide bands, axles and multi-type wear-resistant sleeves. The lineup integrates BK-F-3Y hydraulic control valves, BK-DC-03 emergency brake buttons and TK30 control system matching parts, supported by RFA-40x10Y return oil filters, PT series pressure measuring connectors, JB standard pipe joints and 90L hydraulic tank assemblies. Complete sets of standard bolts, washers, circlips and grease cups ensure full assembly compatibility. Every part adopts precision machining and anti-wear surface treatment, delivering consistent assembly tolerance and cross-part interchangeability for routine maintenance and complete equipment overhaul.

3. Core Functional Description

3.1 Reliable Hydraulic Braking Execution

BK emergency caliper cylinder assemblies and YX service caliper units form complete braking execution structures, paired with adjusting screws and brake pads to achieve accurate braking gap compensation. This functional design eliminates incomplete braking and stroke deviation faults caused by long-term mechanical wear, ensuring stable braking output under constant heavy-load working conditions.

3.2 Precise Hydraulic Control & Emergency Protection

BK-F-3Y hydraulic control valves and BK-DC-03 emergency brake buttons work with the TK30 control system to realize real-time hydraulic regulation and emergency cut-off. Pressure measuring connectors support accurate system pressure monitoring, effectively solving delayed control response and untriggered emergency protection in harsh field environments.

3.3 Full-Circuit Sealing & Oil Circuit Purification

YX-SR and BK-SR series sealing rings and guide bands form multi-layer sealing protection for cylinder cavities and moving parts, preventing hydraulic medium leakage and external dust invasion. RFA oil return filter elements continuously purify circulating hydraulic oil, resolving component abrasion and pipeline blockage caused by impurity accumulation.

4. Structural Characteristics

All accessories adopt modular standardized structural design with unified industrial assembly benchmarks, supporting rapid on-site disassembly and replacement without secondary precision calibration. Core caliper cylinder components adopt high-pressure resistant integral machining, with strong deformation resistance under long-term hydraulic impact. Multi-specification wear-resistant sleeves and elastic guide sleeves reduce internal friction loss and ensure smooth reciprocating movement. Standard circlip and fastener configurations prevent structural loosening induced by persistent field vibration, while integrated filter and pressure monitoring structures maintain long-term hydraulic system cleanliness and operational stability.

5. Applicable Working Conditions

This series of hydraulic brake and control components is exclusively applicable to onshore oilfield drilling rigs, workover equipment and heavy hoisting machinery equipped with TK30 hydraulic control systems and 90L oil tank assemblies. It stably adapts to harsh open-air working environments with ambient temperatures ranging from -25℃ to 73℃, high dust density and continuous mechanical vibration, maintaining stable braking performance, hydraulic control accuracy and sealing reliability under long-term intermittent heavy-load cyclic operation.

6. Field Maintenance Guidelines (Engineer Practical Experience)

Summarized from frontline oilfield maintenance practice, hydraulic sealing rings and brake pads require comprehensive visual inspection every 3 months and full component replacement every 8 months to avoid performance attenuation and leakage. Oil filter elements need regular replacement to guarantee oil circuit cleanliness, while guide sleeves and pin shaft components require periodic grease injection via standard grease cups to eliminate dry friction loss. Mismatched fastener assembly is strictly prohibited to prevent cylinder stroke deviation and structural damage. Standardized maintenance extends the continuous stable operation duration of matched hydraulic systems by 3300 working hours compared with irregular maintenance modes.

We supply the following spare parts:

7. On-Site Fault Maintenance Cases

7.1 Cylinder Sealing Leakage Fault in Daqing Oilfield

Location: Daqing Oilfield, Heilongjiang; Equipment Model: TK30 hydraulic control brake system; Operating Load: 92% rated load; Fault Data: Cylinder joint oil seepage, 1.3MPa system pressure drop; Repair Scheme: Replace aging YX-SR-5 sealing ring and worn BK guide band; Post-repair Index: Zero leakage, system pressure fully restored to rated value; Customer Feedback: Hydraulic system maintains stable pressure holding during continuous heavy-duty operation.

7.2 Guide Sleeve Jamming Fault in Tarim Oilfield

Location: Tarim Oilfield, Xinjiang; Equipment Model: BK caliper cylinder assembly; Operating Load: full continuous load; Fault Data: Guide sleeve jamming, slow cylinder reset speed; Repair Scheme: Replace deformed TK01 guide sleeve and aging BK sleeve parts; Post-repair Index: Cylinder movement flexible, reset speed meets factory specifications; Customer Feedback: Braking action smooth and consistent in long-cycle operation.

7.3 Emergency Brake Insensitivity Fault in Changqing Oilfield

Location: Changqing Oilfield, Shaanxi; Equipment Model: BK-DC-03 emergency control system; Operating Load: 89% rated load; Fault Data: Emergency brake trigger delay, slow system response; Repair Scheme: Replace faulty control valve accessory and clean internal oil circuit; Post-repair Index: Emergency response instantaneous and accurate; Customer Feedback: Safety protection performance fully restored to industrial standards.

7.4 Hydraulic Oil Pollution Fault in Shengli Oilfield

Location: Shengli Oilfield, Shandong; Equipment Model: 90L tank hydraulic circulation system; Operating Load: intermittent heavy load; Fault Data: Oil impurity accumulation leading to unstable braking; Repair Scheme: Replace expired RFA filter element and flush circulating oil circuit; Post-repair Index: Hydraulic oil cleanliness up to standard, braking force uniform; Customer Feedback: Overall system operational stability greatly improved.

8. Product FAQ

9. Technical Standard & Procurement Guidance

All products are manufactured and inspected in strict accordance with GB819-2000, GB5780-86, JB984 and other authoritative national and industrial specifications, with complete field test data and performance verification to meet petroleum machinery industrial-grade operational requirements. This full set of BK, YX and PSZ75 series hydraulic brake and TK30 control system components provides unified, standardized parameter benchmarks for batch procurement, daily maintenance and overall equipment overhaul of oilfield hydraulic braking systems. It also serves as a professional technical reference for on-site operators to diagnose cylinder leakage, guide sleeve jamming, control delay and oil pollution faults, guiding standardized disassembly, assembly and maintenance workflows. Fully validated by long-term field application across multiple major oilfields, the product portfolio delivers exceptional environmental adaptability, structural durability and control stability. Users can select accurate matching accessories according to actual equipment models, operating loads and field fault characteristics to carry out refined equipment maintenance, stabilize hydraulic system operating performance and reduce overall equipment failure frequency. This standardized industrial-grade component suite provides reliable supporting solutions for oilfield mechanical equipment upgrading and daily operational maintenance, supporting professional and systematic equipment performance optimization.