The oil drilling mud pump cylinder liner (Mud Pump Liner) is the core consumable component of the fluid end in drilling mud pumps, directly enduring high-pressure mud erosion, sand abrasion, and corrosion. As a professional manufacturer, we supply high-chrome bi-metal cylinder liners compatible with all mainstream mud pump brands, widely exported to major oil-producing regions worldwide, including the Middle East, North Sea, and Americas.
1. Industry Pain Points
Why Premium Liners Are Critical to Operations
| Challenge | Impact | Cost Implication |
|---|---|---|
| Poor wear resistance | < 400-hour lifespan | 30%↑ downtime |
| Limited compatibility | High spare inventory | 20%↑ procurement cost |
| Severe corrosion | Leakage & pump failure | ¥500,000+/pump/year |
| Low cost-performance | High import pricing | 40%↑ TCO |
Industry Benchmark: Standard liners last 300–500 hours.
Our bi-metal liners: 800–1,000+ hours.Want to explore more mud pump wear solutions?
→ View More Mud Pump Fluid End Parts →

2. Core Advantages
High-Chrome Bi-Metal Cylinder Liners
| Feature | Specification | Performance Gain |
|---|---|---|
| Ultra-High Wear Resistance | HRC 61–65 (Cr 26–28%) | 2–3× longer life |
| Universal Compatibility | F-Series, PZ, 3NB, etc. | Single inventory solution |
| Corrosion & Pressure Proof | 7,500 PSI rated | Zero leakage in high-sand slurries |
| Best-in-Class Value | 70% of import cost | 40% total cost reduction |
Field-Proven: 3,000+ hours in Middle East high-abrasion wells — outperforms ceramic liners.
Curious about bi-metal vs. ceramic liners?
→ Read: Ceramic vs. Bi-Metal Performance Comparison →
3. Specifications Overview
Precision-Engineered for Every Drilling Depth
| Size (inch) | Pump Models | Pressure (PSI) | Ideal Application |
|---|---|---|---|
| 4½” – 5″ | F-500 / F-800 | 5,000 | Shallow / Onshore |
| 5″ – 6″ | F-1000 / PZ-9 | 5,000–7,500 | Medium-depth |
| 6″ – 7″ | F-1300 / F-1600 | 7,500 | Deep / Offshore |
| 7″ – 7½” | 3NB-1600 | 7,500+ | Ultra-deep wells |
Inner Sleeve Composition (High-Chrome Cast Iron):
C: 2.8–3.1% | Cr: 26–28% | Si: 0.6–0.9% | Mn: 0.5–1% | Mo: 0.5–0.8%
Need liners for a specific pump model?
→ Browse Complete Mud Pump Compatibility Chart →

4. Procurement & Service Commitment
Full Lifecycle Support – From Quote to Optimization
| Service | Details |
|---|---|
| Inventory & Lead Time | 5,000+ pcs in stock – 7-day global delivery |
| Customization | OEM / per drawing – MOQ: 1 pc |
| Warranty | 12 months or 1,000 hours – free replacement |
| Technical Support | Installation guides + optimization plans |
Ready to reduce downtime and inventory costs?
→ Contact Our Engineering Team for a Free Consultation →
Take Action Now
Invest in Reliability. Maximize Uptime.
Your mud pump deserves more than a replacement — it deserves performance.
Email: longwell@longwell.ltd
Phone: +86-18792729070
WhatsApp / WeChat: +86-18792729070