Linear guideways are the “tracks” of a turn-mill centre. They convert the servo motor’s rotary thrust into linear motion of the turret or table, while withstanding radial impacts from turning and lateral reaction forces from milling. Compared with traditional slideways, they offer lower friction and faster response, allowing a turn-mill centre to complete turning, milling, drilling and tapping in one clamping while still maintaining micron-level positioning.
II. Structure family
Four-row circular-arc ball guideways Point contact, low friction, ideal for high-speed light-load turrets or sub-spindles.
Two-row Gothic roller guideways Line contact, high rigidity, suitable for main turrets or tables under heavy cutting.
Stainless-steel protected guideways Fully enclosed shields + labyrinth seals prevent coolant mist ingress, suitable for medical or food-grade stainless parts.
III. On-site identification at a glance • Listen: ball — soft “swish”, roller — low “hum”. • Watch: roller heavy-cut faces show no chatter, chips form continuous ribbons.
• Touch: under the same load, roller guideways run cooler and last longer.
IV. Maintenance “two-step method”
Each shift: wipe stainless shield surface to prevent coolant mist ingress.
Monthly: oil gun to guideway oil holes, top up special lithium grease, observe diverter valve for even flow.
V. JSWAY service • Factory-equipped “guideway health ID” — scan to check preload and running-in time. • On-site preload re-calibration service to restore factory accuracy.
One-sentence summary Treat guideways as the “silent runway” of the turn-mill centre — choose the right type, set correct preload, maintain diligently — so every turn-mill move is “zero clearance, low noise, high rigidity”. This is another lifetime insurance JSWAY provides for your compound machining.
