High-Speed Rotary Tube Straightening Machine

Product Features:

The core employs a six-roll double-rotation structure(2-2-2 arrangement).Each roll housing is equipped with high-precision cross roller bearings(radial runout≤0.005mm).The roll profile is optimized via finite element analysis,with transition zones designed using high-order continuous functions to avoid stress concentration.Servo motors drive the roll housing tilt adjustment with an angular resolution of 0.01°and response time<50ms.An online diameter gauge(based on laser triangulation)provides real-time feedback on tube diameter changes for closed-loop control.Roll shafts are water-cooled to maintain operating temperature at 40±5°C.Equipped with tube end detection sensors to automatically identify joint positions and decelerate accordingly.The HMI displays straightening force curves,power curves,and defect distribution maps.The machine frame is made of polymer concrete(mineral casting),offering 6-8 times higher damping coefficient than cast iron.

Product Specifications:

Detailed technical parameters:Straightening roll diameterΦ85mm,roll body length 120mm,surface titanium-coated(thickness 3μm).Main spindle bearings are SKF angular contact ball bearings(adjustable preload).Servo system positioning repeatability±0.005mm.Diameter gauge measuring rangeΦ10-100mm,accuracy±0.01mm.Lubrication system oil supply adjustable from 5-50ml/min,oil viscosity ISO VG32.Machine footprint 4500×1800×1500mm,weight 4.2 tons.Power requirement:3-phase 380V/50Hz,maximum machine power 35kW.Compressed air requirement 0.6-0.8MPa,consumption 50L/min.Noise level:unloaded≤72dB,loaded≤78dB.Ambient temperature requirement 15-35°C,avoid direct sunlight.

Product Applications:

Typical applications:Precision straightening of automotive exhaust system tubing(409/439 stainless steel),requiring straightness≤0.3mm/full length;pretreatment of bicycle frame tubes(4130 chromoly steel)before machining;straightening of air conditioner condenser tubes(TP2 copper tubes)before forming;micro-deformation correction of precision tubes(316LVM)for medical devices;surface quality improvement of square tubes(Q235)for fitness equipment.In tube processing lines,it is typically positioned after cutting and before tube bending,significantly reducing defect rates in subsequent operations.For pressure tubes like hydraulic lines,straightening improves flow resistance distribution.