FI60 ID-Mount Flange Facing Machine: Precision Sealing Surface Restoration for Pressure Vessel Manufacturers
On-Site Machining Case Study
Rapid On-Site Restoration of a Damaged Pressure Vessel Flange
A leading pressure vessel manufacturer, located just 30 km from our facility, faced a sudden operational emergency. During the final loading and shipment phase of a high-value tank, a lifting mishap occurred. The flange sealing surface collided with a heavy object, resulting in visible deformation and deep scoring on the critical sealing face.
Recognizing the urgency, our technical team arrived on-site within the hour, equipped with the FI60 ID-Mount Flange Facing Machine. Designed for medium-diameter flange precision, the FI60 is the industry standard for rapid, high-accuracy field machining.
Key Technical Challenges Solved by the FI60
- Correcting Impact Deformation: Collision damage often creates "high spots" that prevent gaskets from seating. The FI60's stable radial feed allows for microscopic material removal to restore the true flat plane.
- Maintaining Factory Standards in the Field: Unlike manual grinding, the FI60 provides lathe-quality finish that meets international pressure vessel codes (ASME/PED), ensuring repairs pass rigorous pressure tests.
- Space & Mobility Constraints: With the tank already on a transport trailer, space was limited. The FI60's compact footprint allowed efficient operation without moving the vessel.
The Outcome: Maximum Efficiency, Minimum Cost. By choosing on-site machining over traditional workshop repair, the manufacturer achieved a 90% reduction in downtime costs. The vessel was delivered to the end-user on time, with the sealing surface verified to be in "as-new" condition.
Reliability Note: In the manufacturing sector, accidents happen—but they don't have to break the schedule. The FI60 is designed to be the "first responder" for flange damage, ensuring your products leave the factory with perfect integrity, every time.
Machine Features
- ASME-Grade Surface Quality: Equipped with 6 continuous auto-feed settings, FI60 produces consistent spiral or smooth finishes, eliminating sealing issues on large flange faces.
- Extreme Rigidity for Large Diameters: Uses NSK bearings and precision-ground V-guideways to maintain accuracy, even when cutting 59" flanges.
- Custom Tooling Flexibility: The 360° swivel tool post supports multi-angle grooves, weld removal, and re-machining of sealing profiles including RTJ and V-groove.
- Smart Mounting Design: Includes 3 modular, micro-adjustable bases that align securely within the flange ID for stable, quick setup in any orientation.
Technical Specifications
| Item |
FI60P (Pneumatic) |
FI60E (Electric) |
| Drive Type |
Pneumatic Motor (4.1 Hp / 3.0 kW) |
Servo Motor (4.1 Hp / 3.0 kW) |
| Air Consumption |
2.9m³/min @ 0.6 MPa |
N/A |
| Voltage |
N/A |
380V, 50/60 Hz |
| Facing Diameter |
320-1500 mm (12.6"-59") |
320-1500 mm (12.6"-59") |
| ID Mounting Range |
290-1450 mm (11.4"-57") |
290-1450 mm (11.4"-57") |
| Feed Speed |
0.14,0.19,0.23,0.31,0.5,0.67 mm/rev |
0.14,0.19,0.23,0.31,0.5,0.67 mm/rev |
| Rotation Speed |
5-22 rpm |
0-40 rpm |
| Shipping Weight |
650 kg |
699 kg |
| Shipping Dimensions |
1480×725×1060 mm |
1480×725×1060 mm |
How to Choose the Right Power Option for On-Site Flange Facing
Pneumatic Drive - FI60P
Powered by a 4.1 HP Modec air motor, this version is ideal for explosive or ATEX environments.
- Pro: No electrical hazard in sensitive zones
- Con: Requires a strong air supply; in remote areas, a dedicated compressor may be necessary
Electric Drive - FI60E
Uses a servo motor (4.1 HP), delivering continuous torque, stepless speed control, and digital feedback on a remote control box.
- Ideal for workshops, power plants, or chemical facilities with stable electricity
- Offers superior control and cutting performance
