Who Needs This Machine? Core Application Fields of Small Precision Shafts
Our equipment targets manufacturers producing tiny shafts (Φ3–8mm, L50–80mm) widely used in these industries:
- New Energy & Micro Motor IndustryBLDC fan motor shafts, vehicle auxiliary motor shafts, drone gimbal shafts, water pump micro shafts. Slight bending causes motor vibration, abnormal noise and bearing premature wear.
- Power Tool & Home ApplianceDrill motor armature shafts, blender/ hair dryer motor cores, small gear shafts. Mass production requires stable straightness to reduce assembly reject rate.
- Precision Hardware & Medical EquipmentMiniature pin shafts, encoder rotary shafts, medical instrument transmission shafts, optical equipment guide rods. High rotation precision is mandatory for stable operation of precision devices.
- Automotive Small PartsVehicle sensor shafts, throttle valve tiny shafts, window lifter miniature axles. Strict linearity standards for automotive safety components.
- Office & Automation EquipmentPrinter roller shafts, robot micro drive shafts, textile machine tiny transmission rods.
Universal Pain Points of Traditional Shaft Straightening
Most factories still rely on manual single-station straightening, facing these long-standing troubles:
❌ Low & Unstable Precision
Manual dial indicator measurement + hand press correction, highly dependent on worker experience. Small shafts cannot reach under 0.05mm precision, lots of semi-finished products reworked; tiny bending missed easily, leading to finished product noise & jamming.
❌ High Labor Cost & Low Efficiency
Separate feeding, measuring, straightening, sorting all need operators. Cycle time long, unable to match automated production lines; skilled straightening workers hard to recruit & expensive.
❌ Uncontrolled Reject Rate & Hidden Defects
Over-pressing easily causes shaft surface indentation, internal micro-cracks; workpieces exceeding bending limit cannot be automatically screened, defective parts flow into next process, triggering mass complaints.
❌ No Automatic Loading & Unloading for Mass Production
Conventional straighteners lack vibration bowl feeding + manipulator handling, bulk messy shafts need manual sorting one by one, seriously limiting hourly output.
❌ No Closed-Loop Intelligent Correction
Single-point measurement only, cannot calculate accurate bending direction; unable to auto-repeat straightening for NG workpieces, secondary inspection missing.
Our Straighening Machhine Solves All Pain Points
✅ Fully Automatic Unmanned Production
Vibration bowl feeder auto sorts messy shafts + handling manipulator synchronous loading/unloading. Shafts under 80mm require zero manual intervention, auto separate qualified & NG boxes with audio-light alarm for over-limit workpieces.
✅ Industry-Leading Ultra Precision: Small Shaft Straightening Accuracy 0.02mm
1–3 KEYENCE high-precision displacement sensors for full-circle runout detection; 20Ton servo closed-loop pressing system, auto calculate bending angle & pressure value, precise correction without over-straightening.
✅ Closed-Loop Inspection-Straightening-Reinspection Cycle
Auto measure → auto locate bending point → servo straighten → secondary recheck; unqualified pieces repeat correction automatically, only send fully qualified shafts to good product bin.
✅ Integrated Compact Structure, Easy Line Integration
Overall size L2100×W2000×H2300mm, weight 1.5Ton; KEYENCE PLC + Proface touchscreen, production data traceable, compatible with factory automation production lines.
Core Machine Specs
- Applicable shaft: Dia 3–8mm, Length 50–80mm
- Straightening precision: 0.02mm
- Cycle time: 30–120s/pc
- Max servo pressing force: 20Ton
- Power: 380V 3-phase 35kW
- Air pressure: 0.5Mpa
The following is the video about the straightening for this small shaft:
If you are troubled by unstable shaft straightness, high labor cost and high rejection rate, send workpiece drawings to us for free technical solution & trial straightening!
More information please visist our website:
www.straighteningmachinery.com
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