Description
Yuantuo specializes in Q&T equipment for steel pipe, OCTG (casing/tubing), drill collars, single props, and hydraulic props. Our induction heat-treatment line combines advanced power electronics, precise temperature control, and a robust mechanical layout to boost throughput and stabilize product quality.
Primary Applications
Quench-and-temper processing of steel pipes, OCTG, drill collars, single/hydraulic props—delivering strength, toughness, and wear resistance for high-pressure, high-temperature service.
Power Architecture
- Full-body Quench: 500 kW @ 1,000 Hz
- Butt/End Upset Re-heat for Quench: 120 kW @ 1,000 Hz
- Full-body Temper: 200 kW @ 500 Hz
- Butt/End Upset Re-heat for Temper: 80 kW @ 500 Hz
This four-module layout enables precise, section-specific heating and closed-loop control across the entire Q&T route.
Size Coverage
Applicable to multiple specifications of pipes, casing, drill collars, and props. Typical OD ranges include:
Inch series (OD, in):
- 4.83–8.53
- 5.51–9.96
- 6.45–9.52
Metric series (OD, mm):
- 101.6–114.3
- 127–139.7
- 168.68–177.80
- 193.68–219.08
(Other sizes available on request.)
Line Advantages
Helical Roller Conveyance
Roller axes are set at a defined angle to the workpiece axis so each tube rotates while advancing at constant speed—improving circumferential temperature uniformity and heating efficiency. Between-inductor rollers are 304 non-magnetic stainless steel with water cooling for long, stable operation.
Individually Driven, VFD-Controlled Axes
Each feed axis has its own motor–gear reducer and VFD, allowing section-by-section speed profiles and residence-time tuning to match different grades, diameters, and wall thicknesses.
Dedicated End-Upset Re-heat (Butt Heating)
An inline re-heat station measures end-upset (butt) temperature and applies targeted induction re-heating to keep the end and body within ±10 °C, eliminating typical temperature differentials at thickened ends.
Recipe Management
The recipe system recalls process parameters automatically from inputs (grade, OD, wall thickness), reducing manual error and shortening changeovers.
Multi-Loop Closed-Loop Control
For unstable power grids, the line employs high-grade temperature/voltage feedback. It maintains process consistency even with ±20% mains-voltage fluctuation, safeguarding quality and uptime.
Why Choose Yuantuo
Proven Technology, Innovative Design
Over 20 years of induction Q&T expertise. We continuously refine coils, power stages, and control logic for efficiency, stability, and repeatability.
Custom Engineering
Turnkey, to-spec lines tailored to your process route, layout, and mechanical-property targets—helping raise productivity while lowering specific energy use.
Global Deployments & Support
Extensive references in Russia and other international markets. Full lifecycle service—from installation and commissioning to operator training, long-term technical support, and spare-parts supply.
Choose Yuantuo’s Induction Quench & Temper Line for steel pipes and OCTG to upgrade throughput and product quality.
Contact us for a customized process proposal and detailed quotation.
