Compression Cylinder: Precision Actuation for BOP Ram Operation
The BOP Actuation Challenge
Inadequate cylinder performance risks:
⚠️ Delayed ram closure in well control emergencies
⚠️ Seal failure under high wellbore pressure
⚠️ Fluid leakage causing hydraulic system inefficiency
⚠️ Reduced reliability in critical shut-in scenarios
Our Compression Cylinder Delivers:
✅ Immediate response for reliable BOP ram closure
✅ Zero-leak performance under maximum rated pressure
✅ Corrosion-resistant construction for extended service life
✅ Full compliance with API 16A well control standards
Design Features & Working Principle
Hydraulic Actuation Technology
| Feature | Specification | Functional Benefit |
|---|---|---|
| Piston Design | Double-acting balanced piston | Smooth extension/retraction cycles |
| Seal System | Multi-stage polymer/metal seal stacks | Zero leakage at 125% rated pressure |
| Rod Material | Chrome-plated 4140 steel | Superior wear and corrosion resistance |
| Port Configuration | SAE 6000 PSI flanged ports | Secure hydraulic connection |
Technical Specifications
| Parameter | Specification |
|---|---|
| Bore Sizes | 4″ to 14″ (standard range) |
| Pressure Rating | 5,000 PSI operating / 6,250 PSI test |
| Stroke Length | 6″ to 36″ (customizable) |
| Temperature Rating | -30°F to 250°F |
| Rod Diameter | 2″ to 6″ (proportional to bore) |
| Fluid Compatibility | Petroleum-based, synthetic, water-based |
Operational Advantages
Well Control Reliability
- 0.5-second full stroke actuation at rated pressure
- Maintains position without drift during extended holds
- Consistent performance through 10,000+ cycles
Maintenance Efficiency
- Modular seal cartridges for rapid field replacement
- Standardized mounting dimensions for easy retrofitting
- Corrosion-resistant materials for reduced lifecycle cost
Field Applications & Performance Data
Application Scenarios
- BOP Ram Actuation: Primary closure mechanism for pipe/shear rams
- Hydraulic Control Systems: Interface with accumulator units
- Workover Operations: Reliable pressure control during intervention
- HPHT Wells: Certified performance in extreme conditions
Performance Metrics
✅ Response Time: <1 second full stroke at 3,000 PSI
✅ Pressure Integrity: Zero leakage through 20,000 cycle test
✅ Service Life: 5+ years in continuous service
✅ Reliability: 99.9% operational availability in field trials




