LISHUI, China – June 2, 2026 – Zhejiang Wellnit Machinery Manufacturing Co., Ltd. has successfully carried out the factory acceptance test (FAT) and trial run of a custom‑built OCH‑1830 Hydraulic External Clamp Pipe Cutting and Beveling Machine. This critical pre‑shipment procedure, conducted on June 2, aims to fulfill a customer‑specific order and ensure that the equipment arrives at the job site in optimal working condition-ready for immediate use upon receipt.
Designed for rigorous heavy‑duty applications, the OCH‑1830 is a versatile stainless pipe beveler and cutting system built to handle indoor and outdoor batch processing of large‑diameter steel pipes. Beyond standard pipe cutting and beveling, chamfering and edge‑trimming operations, the machine also features the capability to machine raised‑face (RF) flanges after welding, offering enhanced flexibility for demanding pipeline fabrication projects.
Customized Upgrades for Large‑Diameter Heavy‑Duty Operation
To meet the specific requirements of this customer order, Wellnit's engineering team implemented a series of purpose‑built enhancements on the OCH‑1830:
Upgraded high‑power hydraulic power pack: A substantially more powerful hydraulic station was installed to deliver the heavy‑duty cutting torque required for processing 1830mm large‑diameter pipes.
Custom heavy‑duty split‑frame ring: A reinforced split‑frame design, constructed from thickened alloy castings, was adopted to completely eliminate frame deformation during heavy‑cutting operations on oversized workpieces.
Precise pipe OD verification: Before commissioning, the customer's specified pipe outer diameter was confirmed at exactly 1830mm, and the allowable tolerance range was clearly documented to guarantee repeatable accuracy.
Meticulous Five‑Step Commissioning Protocol
During the factory acceptance test, Wellnit's technical team executed a systematic five‑phase commissioning procedure to guarantee performance and reliability:
Machine mounting and centering alignment: The split frame was securely assembled around the test pipe, with the pipe positioned precisely at the center of the machine. This step is critical for achieving uniform cutting and beveling results.
Tool installation and cutting clearance adjustment: Cutting tools were correctly positioned and installed, with all clearance parameters verified.
Hydraulic power system commissioning: The upgraded hydraulic station was thoroughly tested to ensure it meets the torque and pressure requirements for the specified pipe wall thickness.
Feed mechanism calibration: The automatic feed travel was fine‑tuned to ensure consistent, uniform feed throughout the full circumference of the pipe.
Safety test run and anomaly handling: A complete safety test was conducted under standard operating conditions to validate all protective systems. To extend tool life, cutting fluid was applied during the process.
Key commissioning focus: Tool setting (on‑center adjustment) and feed depth synchronization-particularly critical for achieving the high‑quality bevel finish that distinguishes a true stainless pipe beveler from conventional equipment.
Superior Machining Outcomes Validated
The OCH‑1830 delivered exceptional results across all performance metrics during the factory acceptance test:
Worm‑gear automatic feed system: The worm‑gear mechanism ensures smooth, uniform cutting feed, eliminating irregular step‑wise movements.
High machining accuracy: Cut faces are smooth and burr‑free, requiring no secondary grinding before welding-significantly reducing downstream processing time.
360‑degree stable pipe clamping: The split‑frame external clamp design provides full‑circumference clamping force, eliminating pipe deflection during heavy machining.
Uniform bevel width: Consistent bevel dimensions are maintained around the entire pipe circumference, guaranteeing weld‑ready preparation on every pass.
Cold cutting process: Because the machine does not generate heat during cutting, the metallurgical structure and wall integrity of the pipe material are preserved. This is particularly valuable when working with stainless steel, where heat‑affected zone (HAZ) must be strictly avoided.
As a purpose‑built stainless pipe beveler, the OCH‑1830 is fully capable of processing stainless steel, carbon steel, and alloy steel pipes without altering their material properties.
Customer Customization Capability Reaffirmed
This successful factory commissioning once again demonstrates Wellnit's ability to deliver fully customized equipment precisely according to customer specifications. From upgraded hydraulic power output to the reinforced split‑frame casting and specific OD tolerance documentation, every aspect of the machine was tailored to the client's unique large‑diameter processing requirements. Wellnit remains fully open to custom order requests.
