Industrial turning machinery <span>Feiya Machine Tool</span>

Industrial metal cutting lathes and vertical machining centers from Feiya Machine Tool: slant-bed CNC lathes, universal turning machinery, and milling units.

Fully enclosed CNC lathes CKX6136 and CKX6140 series

The CKX6136 and CKX6140 CNC lathes feature a 44-degree slant bed design built from high-rigidity iron with precision linear guideways. Equipped with Siemens or Fanuc CNC controllers, infinitely variable spindle speeds up to 3500 rpm, and robust hydraulic chucking cylinders.

Maximum turning swing over bed guideways ranges from 360 mm up to 400 mm diameter
Through spindle bore diameter reaches 52 mm with standardized Morse taper metric five
Infinitely variable spindle rotation speeds span continuously from 100 to 3500 rpm
Rapid traverse velocity along primary linear axes reaches up to 10000 millimeters per min

Universal conventional horizontal engine lathes C6136 and C6140

Conventional horizontal engine lathes C6136 and C6140 provide dependable turning capabilities with induction hardened bed guideways. Featuring a twelve-step geared headstock, they execute internal turning, external facing, tapering, and comprehensive imperial or metric threading.

Maximum turning swing over bed reaches 360 mm for C6136 and 400 mm for C6140 models
Center-to-center distance configurations accommodate workpieces from 750 mm to 1000 mm
Twelve mechanical gear steps deliver reliable spindle speeds for fine finishing cuts
Universal feed gearbox cuts metric, imperial threads, module pitches, and diametral steps

High-precision large spindle bore lathes CJC series

Feiya CJC series precision turning machines, including CJ6240C, CJ6245C, CJ6250C, and CJ6260C, are engineered for pipe and tubular workpiece turning. An enlarged through spindle bore and heavy-duty preloaded bearing journals ensure high dimensional stability during facing.

Enlarged through-spindle bore accommodates extended tubular and bar stock feeding
Spindle assembly utilizes preloaded precision roller bearings for minimal runout
Broad cutting speed regulation envelope optimized for fine finishing operations
Reinforced cross-slide assembly and rigid tool holder eliminate vibration harmonics

Heavy-duty horizontal engine lathes CJY series

Feiya heavy-duty CJY series lathes, comprising models CJ6250YC, CJ6266YC, and CJ6280YC, are built for machining large forgings and wide shafts. A reinforced bed foundation, high-torque motor drive, and a stiff tailstock barrel prevent workpiece deflection during heavy turning.

Maximum workpiece swing diameter over bed reaches up to 800 mm on CJ6280YC model
High-output primary electric drive delivers high torque at lower rotation bands
Heavy-duty tailstock quill diameter up to 80 mm firmly supports long workpieces
Induction hardened ground bedways maintain geometry under substantial component weight

Vertical machining centers and bed-type CNC milling machines

Feiya vertical machining centers and bed-type milling units, including XKN5225, XKN5230, and ZX7550, provide comprehensive prismatic part processing. Automatic tool changers, preloaded ball screws, and stable CNC units ensure dependable drilling, contour milling, and tapping.

Extended heavy worktable surface holds dense prismatic plates and bulky housings
Precision preloaded recirculating ball screws along three linear orthogonal axes
High-speed cartridge spindle system features dedicated circulating thermal cooling
Automatic tool magazine delivers rapid tool-to-tool exchange for uninterrupted runs

Spare assemblies and replacement parts for Feiya machine tools

We supply verified replacement components for Feiya turning and milling units: spindle cartridges, headstock gearing, precision lead screws, apron worm shafts, and tool turrets. Technical selection by machine nameplate guarantees correct dimensional fit during plant maintenance.

Precision spindle journal bearings restore high-speed rotational runout and rigidity
Ground transmission gear sets and spline shafts manufactured from alloy steel
Hardened lead screws, split bronze feed half-nuts, and adjustable gib strips
Electromagnetic friction clutches and automatic lubrication distribution pumps

Adjustment of tapered gibs and carriage slideway clearances

During prolonged metal cutting operations on Feiya horizontal lathes, gradual mechanical wear occurs across longitudinal and cross-slide guideways, resulting in excessive clearances and tool chatter. Slideway clearance adjustment utilizes tapered gib strips positioned along the carriage flanks.

By gradually tightening the front adjustment screw while loosening the rear lock fastener, the tapered gib advances into the dovetail geometry.

Technicians verify gib tension by manually traversing the handwheel across the entire bed length: movement must remain smooth, uniform, and free from binding or excessive friction. A precision thin feeler gauge must not penetrate between the mating scraped surfaces under standard test protocol.

Tightening the secondary locking screw firmly secures the gib strip against displacement under cyclic cutting loads.

Spindle journal runout diagnostics and bearing preload calibration

Rotational accuracy and dynamic rigidity of the Feiya lathe spindle directly govern component surface finish and roundness tolerances. Spindle diagnostics employ a high-resolution dial test indicator reading down to 0.001 mm mounted on an ultra-stiff magnetic base.

Measurement points include the external centering journal and the internal Morse taper bore.

Allowable radial runout during manual spindle rotation should not exceed 0.005 mm.

If excess radial play or axial movement is detected, technicians calibrate the preloaded double-row cylindrical roller bearings by tightening the slotted locknut on the spindle shaft, drawing the tapered inner ring onto the spindle journal until optimal preload without excessive heating is reached.

Bed guideway alignment protocols and bedway wear remediation

Horizontal bed straightness and parallelism across Feiya C61 and CKX turning machines ensure uniform diameter tolerances over extended workpiece lengths. Technicians inspect bedway straightness using an ultra-precision frame spirit level graduated to 0.02 mm per 1000 mm or an optical collimator.

Readings are recorded at 200 mm intervals along the complete slide travel stroke.

Localized wear hollows near the headstock chuck are reconditioned through precision hand scraping or specialized portable grinding slides.

Following slideway realignment, technicians scrape the underside carriage gib plates to restore center alignment with the tailstock spindle, ensuring parallel alignment with the primary spindle axis.

Headstock transmission gearing and apron half-nut maintenance

Gears and splined shafts within Feiya headstock and apron assemblies endure repetitive torsional shocks during threading and high-torque turning. Planned preventative maintenance inspects lubrication oil quality, suction filter screens, and the operational delivery of the mechanical gear oil pump.

Gear tooth profile wear is evaluated through operational noise monitoring, bearing journal thermal measurements, and contact tooth pattern checks.

Backlash between the precision lead screw and the bronze split half-nuts is adjusted via apron compensation screws, eliminating axial play during metric and imperial thread production.

Ball screw backlash calibration and linear motion guide maintenance

Across Feiya CKX6136 and CKX6140 CNC turning centers, positional repeatability along X and Z axes depends on preloaded ground ball screws and linear motion rail blocks. Axial backlash is measured using a sensitive dial gauge while executing programmed reversal micro-steps from the CNC controller.

Measured backlash should not exceed 0.004 mm.

When preload degradation occurs, technicians overhaul the double-nut ball screw assembly and insert ground shim spacers to restore zero-backlash drive stiffness.

Telescopic steel way covers and linear carriage wiper seals are inspected regularly to prevent iron dust or metal swarf contamination from entering the linear motion blocks.

Systematic machine commissioning and comprehensive operational service

SpareX engineering specialists perform scheduled preventative maintenance, spindle vibration diagnostics, guideway geometry inspection, and turnkey commissioning of Feiya metal turning equipment.

The commissioning program verifies alignment tolerances to machine tool engineering standards, checks rotating balance, and sets work coordinate offsets on Siemens and Fanuc controllers.

Technicians also calibrate multi-station electric tool turrets, verify hydraulic chucking pressures, and run test-turning trials on stepped test pieces under realistic metal-removal rates.

Adherence to structured maintenance schedules maximizes machine uptime and prevents unexpected plant interruptions.

Feiya Machine Tool and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Feiya Machine Tool and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.