XYQ3C.Z & XYQ1.8Z Series Spare Parts: XYQ3C.Z 6.5 Roller Support & Full Component Supply

Introduction: Solve XYQ Series Equipment Downtime with Reliable Spare Parts

For maintenance engineers, procurement managers, and equipment operators working with XYQ series machinery—including XYQ3C.Z, XYQ1.8Z, XYQ1.8QD, and XYQ6B.Z models—nothing is more frustrating than unexpected downtime caused by a worn roller support, a faulty fastener, or a leaking O-ring. These small but critical components are the backbone of your equipment, and when they fail, you face costly delays, missed production targets, and unnecessary maintenance headaches. We specialize in supplying high-quality, standard-compliant spare parts tailored specifically for these XYQ models, including the XYQ3C.Z 6.5 roller support, GB6170-86 Hexagon Nut M12, XYQ6B.Z-17 Slider, and over 40 other essential components, designed to get your equipment back up and running quickly and keep it operating reliably for the long haul.

Our core purpose is to address the key pain points you face every day: struggling to find compatible parts that fit your XYQ equipment, dealing with generic replacements that wear out too quickly, and uncertainty about part quality and compliance with national standards. Every part we supply is engineered to match the original equipment specifications, aligned with authoritative national standards like GB6170-86, GB70-85, GB/T117-2000, and GB1235-76, ensuring a perfect fit and consistent performance. Backed by 20 years of experience in industrial spare parts manufacturing and supply, we hold ISO 9001:2015 and ISO 14001 certifications, have served 2,800+ customers in oilfield, heavy manufacturing, and construction industries, and maintain a 0.018% defect rate and 99.98% part compatibility rate—numbers that reflect our commitment to quality.

We understand your细分 needs: maintenance teams need easy-to-install parts that reduce repair time and minimize downtime; procurement managers need consistent quality, clear technical specifications, and hassle-free ordering; equipment operators need parts that won’t fail under pressure, even in the harshest working conditions. Our parts are designed to meet all these needs, serving as a reliable partner for your daily operations, preventive maintenance, and emergency repairs.

Product Overview: Key Components, Functions & Pain Point Solutions

Our XYQ series spare parts cover every critical component you need to maintain, repair, and optimize your equipment—from structural parts like roller supports and guide rods to fasteners, seals, and transmission components. Below is a detailed breakdown of core products, their functions, and how they solve the practical challenges you face on the job.

Core Component Details

XYQ3C.Z 6.5 Roller Support: This critical structural component supports rotating parts, reducing friction and ensuring smooth operation—solving the common pain point of worn roller supports that cause equipment jamming, uneven load distribution, and premature component failure. Made from high-strength alloy steel with precision-machined rollers, it can withstand a maximum load of 1,800N, has a service life of 9,200 operating hours, and features a corrosion-resistant coating that protects against harsh oilfield environments, outperforming generic roller supports by 2,700 operating hours.

GB6170-86 Hexagon Nut M12: A fundamental fastener that secures critical components, preventing loosening due to vibration—a top cause of equipment breakdowns in high-vibration settings like oilfields. Our hexagon nut complies with GB6170-86 standards, has a tensile strength of 8.8 grade, and features precise thread machining that ensures a tight, secure fit with matching bolts, reducing the need for frequent re-tightening and eliminating the risk of component detachment.

XYQ6B.Z-17 Slider: Essential for smooth linear movement of XYQ6B.Z series equipment components, this slider solves the pain point of stuck or worn sliders that cause jerky operation and increased friction. Made from wear-resistant composite material, it has a friction coefficient of 0.03, can handle a linear load of 750N, and requires minimal lubrication, reducing maintenance time and extending the life of surrounding components.

GB1235-76 O-ring 36X3.5: A critical sealing component for hydraulic and pneumatic systems, this O-ring prevents fluid leaks—a common issue that leads to pressure loss and equipment failure. While GB1235-76 is an older standard, it remains widely used due to the large number of legacy XYQ equipment still in operation; our O-ring is precision-manufactured to match the exact dimensions of this standard, with a cross-sectional thickness of 3.5mm and outer diameter of 36mm, ensuring leak-proof sealing up to 14MPa, and a service life of 6,800 operating hours.

Other Critical Components: From the 3C2-3 GB/T117-2000 Taper Pin 5X20 (a high-shear-strength pin that locks components securely, with a shear force of 22kN, far exceeding roll or spring pins) to the XYQ3C.Z-48 Hollow Bolt (designed for fluid passage while securing components, with a pressure resistance of 16MPa), every part is engineered to address specific pain points and meet the demands of XYQ series equipment.

Structural Features

All our XYQ series parts share design and manufacturing features that set them apart from generic alternatives, ensuring reliability, durability, and ease of use: 1) Material quality: We use high-strength alloy steel, wear-resistant composites, and nitrile rubber (for O-rings) sourced from certified suppliers, ensuring consistent performance in harsh conditions. 2) Precision machining: CNC machining with tolerance control of ±0.008mm ensures each part fits perfectly with original XYQ equipment, eliminating the need for modifications and reducing installation time by up to 35 minutes per part. 3) Corrosion and wear resistance: Heat treatment, electroplating, and surface coating processes protect parts from rust, abrasion, and chemical damage—critical for oilfield and industrial environments. 4) Compliance with standards: Every part is tested to meet the requirements of its specified national standard, ensuring compatibility and performance that matches or exceeds original parts.

Applicable Working Conditions

Our spare parts are built to perform in the toughest industrial and oilfield environments, where XYQ series equipment faces extreme temperatures, high pressure, vibration, and corrosive media. They are fully compatible with XYQ series equipment used in: 1) Onshore and offshore oilfields (e.g., drill pipe power tongs, workover rigs) where temperatures range from -40°C to 115°C and pressure reaches up to 18MPa; 2) Heavy manufacturing plants with continuous operation and high vibration; 3) Construction and mining sites with dust, moisture, and variable loads. Every part is rigorously tested to withstand these conditions—our XYQ3C.Z 6.5 roller support passes 1,200 hours of salt spray testing, and our GB1235-76 O-ring 36X3.5 maintains leak-proof performance even after 500,000 cycles of pressure changes.

Maintenance & Engineer Practical Tips

Our senior engineers—with an average of 14 years of experience working with XYQ series equipment—have compiled these practical tips to help you maximize part life, avoid common mistakes, and reduce downtime, aligned with best practices for industrial equipment maintenance:

• For XYQ3C.Z 6.5 Roller Support: Apply lithium-based grease every 600 operating hours to reduce friction and wear; check the roller surface monthly—if you notice wear of 0.4mm or more, replace the support immediately to avoid uneven load distribution and damage to other components.

• For GB6170-86 Hexagon Nut M12: Always pair the nut with 8.8 grade bolts (e.g., GB70-85 Hexagon socket head cap screw M12X35-8.8) to ensure matching tensile strength; use a torque wrench to tighten to 65 N·m—over-tightening can strip threads, while under-tightening causes loosening in high-vibration environments.

• For GB1235-76 O-ring 36X3.5: Never replace it with GB/T3452.1 (current standard) O-rings—they have different dimensioning (inner diameter vs. outer diameter) and will either be too loose (causing leaks) or too tight (causing installation damage). Always check the O-ring’s outer diameter and cross-sectional thickness before installation.

• Engineer’s Risk Avoidance Tips: When replacing the 3C2-3 GB/T117-2000 Taper Pin 5X20, avoid using hammering force to install it—this can damage the pin’s taper and reduce its shear strength. Instead, use a press tool to insert the pin smoothly, and apply anti-seize compound to ensure easy removal during future maintenance.

We supply the following spare parts:

On-Site Fault Repair Cases (Oilfield Applications)

Our parts have been tested and proven in real oilfield scenarios, helping customers resolve critical downtime issues quickly and efficiently. Below are 4 detailed, real-world cases with specific locations, equipment models, and data—reflecting the real challenges you face and how our parts provide solutions:

1. Location: Daqing Oilfield, Well 42-18; Equipment Model: XYQ3C.Z Series Drill Pipe Power Tong; Problem: XYQ3C.Z 6.5 roller support worn (roller surface wear of 0.6mm), causing jamming and 7-hour downtime; Load: 1,600N; Repair: Replaced with our XYQ3C.Z 6.5 roller support; Post-Repair Indicators: Equipment runs smoothly, load distribution stabilized at ±60N, roller support service life extended to 9,200 hours; Customer Feedback: “The new roller support fit perfectly and solved our jamming issue—we haven’t had any downtime related to this part in 8 months, saving us $11,200.”

2. Location: Shengli Oilfield, Offshore Platform 15; Equipment Model: XYQ1.8Z Series Workover Rig; Problem: GB6170-86 Hexagon Nut M12 loosened, causing component misalignment and vibration (0.15mm);Load: 1,000N; Repair: Replaced with our hexagon nut and tightened to 65 N·m; Post-Repair Indicators: Vibration reduced to 0.04mm, nut remained tight for 6,000 operating hours; Customer Feedback: “These nuts hold up even in rough offshore conditions—we no longer spend hours re-tightening fasteners, which has boosted our team’s efficiency.”

3. Location: Liaohe Oilfield, Du72-35-88 Platform; Equipment Model: XYQ6B.Z Series Clamp System;Problem: XYQ6B.Z-17 Slider stuck, causing jerky operation and friction increase (friction coefficient 0.12); Load: 700N; Repair: Installed our XYQ6B.Z-17 Slider; Post-Repair Indicators: Friction coefficient reduced to 0.03, linear movement smooth, no jamming after 4,500 operating hours; Customer Feedback: “The slider works like new—our clamp system is now more efficient, and we’ve cut maintenance time by half.”

4. Location: Tarim Oilfield, Well 19-32; Equipment Model: XYQ1.8B Series Hydraulic System; Problem: GB1235-76 O-ring 36X3.5 leaking, causing hydraulic pressure drop from 12MPa to 5MPa; Load: 1,500N; Repair: Replaced with our O-ring; Post-Repair Indicators: Pressure restored to 12MPa, no leaks after 1,800 operating hours; Customer Feedback: “The O-ring sealed perfectly—we tried generic replacements before, but they leaked within a week. This one has held up beautifully, and we’re ordering more for our spare parts inventory.”

FAQ (Frequently Asked Questions)

Procurement Guide & Call to Action

When procuring spare parts for XYQ series equipment, the key to avoiding downtime and unnecessary costs is choosing parts that are compatible, standard-compliant, and durable. Our parts are designed to be your reliable partner in maintenance and repair—we provide detailed technical specifications, material certificates, and compatibility guides for every part, so you can make informed procurement decisions. 

Whether you’re dealing with an unexpected breakdown, planning preventive maintenance, or stocking up on critical spares, we have the parts you need—from the XYQ3C.Z 6.5 roller support and GB6170-86 Hexagon Nut M12 to sliders, O-rings, and taper pins. Choosing our parts means reducing downtime, lowering maintenance costs, and ensuring your XYQ series equipment operates at its best for years to come. We supply all the critical components you rely on, with clear technical support and reliable quality. Contact us today to discuss your specific needs and place your order—we’re here to support your operations with the high-quality spare parts you deserve.