Technical Data
Drill Pipe & Screw Rod Throughput Data
Values below are typical for a standard frame. Shangda configures the machine to your workpiece envelope and throughput target, so pipe length and diameter limits move with your production mix. If you’re running 50–100 heavy pipes a shift, the powered feed and automatic measure-correct-verify cycle keep rejects from piling up at the end of the line — and keep one operator in control of multiple machines.
| Straightening force | 60 t point-pressure |
| Max workpiece length | Up to 8,000 mm (configurable) |
| Max workpiece diameter | Up to 220 mm (larger on request) |
| Straightness after correction | ≤0.01 mm precision mode | 0.19 mm field-verified on spiral drill pipe |
| Cycle time | 40–90 s depending on length and initial runout |
| Control system | AI self-learning closed-loop, servo-hydraulic, MES-ready |
| Motor power (typical) | 22 kW hydraulic pump |
| Machine weight (standard frame) | ≈14,000 kg |
Applications / Gallery
Where High-Volume Tubular Straightening Pays Off
Oil and gas operations run this machine on 6–8 m drill pipe before threading. The point-pressure head leaves the OD clean, so coating and threading steps don’t inherit marks. Mining and tunnelling contractors straighten screw conveyor shafts and rotary drilling tools with the same tooling set. Construction piling suppliers use it for large-diameter casing and auger stems. Geothermal drillers put high-alloy rod through the same correction head without tooling changes. Special-shape screw rods — including variable-pitch helical faces — come out within tolerance because the correction points follow measured runout, not a fixed die shape.
Test Your Hardest Drill Pipe Before You Buy
Send us a bent screw rod or drill pipe with your target straightness. We’ll run it on the actual machine and send the measurement report.
Shangda Automation Equipment Co., Ltd.
Drill Pipe and Screw Rod Straightening Machine
For teams that measure straightness before accepting material, this machine delivers the number on the report: 0.19 mm or better on production spiral drill pipe, with precision mode down to 0.01 mm for tighter screw rods. High-volume tubular straightening calls for a different machine. This system moves long, heavy drill pipe and screw rods through measure-correct-verify cycles without manual lifting, and it holds straightness on special-shaped helical workpieces that fixed-die machines reject. We’ve watched shops load a bundle, set the target on the touchscreen, and leave the machine to correct one part after another through the night shift.
Key Specifications
Pipe Straightening Capacity at a Glance
Features / Highlights
Why This Machine Moves More Tons Per Shift
High-volume handling
Powered feed rollers and automatic loading keep pipe moving through measure-correct-verify cycles. One operator can manage multiple machines, and the system runs unmanned 24/7 with MES connectivity. If a bar is out of tolerance after correction, the controller flags it before it reaches the next station.
Large-diameter pressure without marks
60 t point-pressure correction removes runout without full-length dies. No scratches, no indentations, so thread and coating operations downstream don’t pay for the straightening step.
Special-shape screw rods
AI multi-point measurement maps helical faces and variable pitch. Correction points follow measured runout, so near-net-shape screw rods and drill pipe come into tolerance.
Closed-loop straightening
Measure, correct, verify — all in one cycle. CE-certified control architecture and ISO 9001 build records mean the repeatability you see in validation carries to production.
Crack detection built in
Germany QASS crack detection runs during correction. You see microcracks before the workpiece goes into service, cutting field failures for drill pipe and screw rods.
Fast changeover
Recipe-based touchscreen setup switches between drill pipe and screw rod programs in under 15 minutes. Calibrate with a master bar once per shift — not hours of trial bending. After 2,000 hours, check hoses and re-zero the laser probe; maintenance is scheduled around production, not the other way around.
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