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Gap Bed Lathe CA6240: 630mm Swing in Gap for Oversized Component Machining and 4000mm Length for Shaft Turning
Gap Bed Lathe CA6240: 630mm Swing in Gap for Oversized Component Machining and 4000mm Length for Shaft Turning
630mm Swing gap bed lathes
CA6240x4000 gap bed lathes
CA6240x4000 gap bed engine lathe
Place of Origin:
Tengzhou, Shandong
Brand Name:
JingOne Machine
Certification:
CE Certifications
Model Number:
CA6240x4000
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Product Details
Max.swing Over Bed:
400mm
Max.swing In Gap:
630mm
Effective Gap Length:
210mm
Max.workpiece Length:
4000mm
Max.workpiece Weight:
300kg
Max. Allowable Cutting Force:
1400Nm
Highlight:
630mm Swing gap bed lathes
,CA6240x4000 gap bed lathes
,CA6240x4000 gap bed engine lathe
Payment & Shipping Terms
Minimum Order Quantity
1
Price
Start from 15000USD
Packaging Details
Plywood Case
Delivery Time
30 days
Payment Terms
T/T
Supply Ability
50 sent/month
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Product Description
Gap Bed Lathe CA6240: 630mm Swing in Gap for Oversized Component Machining and 4000mm Length for Shaft Turning
Model: CA6240 | Core Keyword: Gap bed lathe | Manual Gap Bed Lathe | Gap Bed Center Lathe
Gap Bed Lathe Overview
The JingOne CA6240-4000 is an industrial-grade, ultra-long manual gap bed lathe engineered for heavy-duty universal metal turning across vast workpiece profiles. Spanning a massive 4000 mm maximum workpiece length, this high-performance gap bed center lathe is specialized for machining extra-long industrial transmission shafts, hydraulic cylinders, and oilfield rollers, while remaining a versatile workhorse for general maintenance workshops and heavy machinery repair sectors.
Built upon a robust 3850 Kg dense cast iron base with a wide 400 mm bed width, the CA6240 features a highly adaptive removable gap section. This configuration expands the standard 400 mm swing over bed into an impressive 630 mm maximum swing in the gap (with a 210 mm effective gap length), permitting the turning of oversized disc parts, large flywheels, and broad pipe fittings.
Driven by a dependable 7.5 kW main motor running an multi-stage geared headstock with 24 forward speeds (16–1400 rpm) and an MT6/52mm spindle bore, this center lathe delivers uncompromised mechanical torque and precision thread-cutting capability for any global repair shop.
CA6240 Gap Bed Lathe Features
- Gap Bed Design: Features a removable bed section that increases the machine capacity to a 630 mm swing in the gap, using a faceplate to enable workshops to process large, irregular, or out-of-round industrial parts alongside standard long shafts.
- 4000 mm Long Turning Capacity: Engineered with an expansive 4000 mm maximum distance between centers, using steady rest and follow rest and offering massive longitudinal capacity for long structural rollers and shaft straightening/turning operations without bending.
- Multi-Standard Threading System: The high-torque quick-change gearbox enables direct cutting of 44 types of Metric, 21 types of Imperial, 39 types of Module, and 37 types of Diameter Pitch (DP) threads.
- High-Torque 24-Speed Geared Headstock: Powered by a 7.5 kW main motor yielding 24 forward speed steps (16-1400 RPM) and 12 reverse steps (20-1400 RPM), allowing operators to choose the absolute optimal torque for roughing tough alloys or achieving fine finishes.
- Flexible Axis & Toolpost Manipulations: Equipped with a ±90° rotating tool holder turntable for taper and bevel cutting, a 320 mm lower tool holder travel, a fast foot brake system, and optional EU-type quick-change tool posts to compress setup cycles.
- Ships with extensive workshop configurations including standard chuck guards, splash guards, and tool post shields.
- Optional additions include SINO 2-axis DROs, ±15° taper turning attachments, grinding attachments for precision turning and grinding work.
CA6240 Specifications
| Parameter | Specification |
|---|---|
| Max.swing over bed | 400 mm |
| Max.swing over carriage | 210 mm |
| Max.swing in gap | 630 mm |
| Effective gap length | 210 mm |
| Max.workpiece length | 4000 mm |
| Bed width | 400 mm |
| Spindle taper | M.T.6 |
| Spindle speed range (forward) | (24 types) 16-1400 rpm |
| Spindle speed range (reverse) | (12 types) 20-1400 rpm |
| Spindle bore diameter | 52 mm |
| Metric threads | 44 Types,1-192 mm |
| Imperial threads | 21 Types, 2/24 T.P.I |
| Module threads | 39 Types, 0.25-48 mm |
| Diameter pitch threads | 37 Types, 1-96 D.P |
| Lower tool holder travel | 320 mm |
| Upper tool holder travel | 140 mm |
| Tool holder turntable rotation | ±90° |
| Tool bar cross-section size | 25X25 mm |
| Tailstock quill diameter | 75 mm |
| Tailstock quill travel | 150 mm |
| Tailstock quill taper | M.T.5 |
| Main motor power | 7.5 Kw |
| Cooling pump power | 90 W |
| Cooling pump flow rate | 25 L/Min |
| weight | 3850 Kg |
| Dimensions | 5800x1140x1750 mm |
Accessories
| Accessory | Optional Configuration |
|---|---|
| 2-axis DRO | Brand: SINO |
| 3-jaw chuck | ¢250mm |
| 4-jaw chuck | ¢400mm |
| Face plate | ¢500mm |
| Steady rest | ¢20-125mm/¢100-250mm |
| Follow rest | ¢20-80mm |
| Drilling chuck | M.T.5 |
| Live center | M.T.5 |
| Quick-change tool post | EU type: 1 main part + 4 tool posts |
| Taper turning attachment | ±15° |
| Protection | Include: tool post shield, chuck guard, splash guard, screw guard |
| Foot brake | Included |
| Grinding attachment | Available as optional accessory |
Logistics & Support
Packing: Sea-worthy plywood case with waterproof lining, reinforced with double steel bands for 3850kg heavy gap bed lathe long-distance shipping
Warranty: Full 12 months warranty covering core mechanical systems (spindle, gearbox, bed guideways)
Technical Support: Lifetime free technical support via email, video call, or on-site service (extra charge applies for on-site visits)
Export Coverage: Exported to 30+ countries including Germany, Australia, Brazil, USA and Southeast Asian markets
Customs Documentation: Complete export documentation provided including CE certificate, commercial invoice, packing list, and bill of lading
FAQ
Q: What is the main purpose of the gap bed design using on the CA6240 manual center lathe?
A: A manual gap bed lathe combines long-axis turning with localized large-diameter versatility. The JingOne CA6240-4000 provides a standard 400 mm swing over the bed for turning shafts up to 4000 mm in length. However, near the headstock, it features a removable bed segment that provides an effective gap length of 210 mm. When this gap block is detached, the maximum clearance increases to a 630 mm swing in the gap, allowing the machine to turn large-diameter flanges, pulleys, and oversized disc parts that would typically require a much larger, more expensive lathe.
Q: How does the CA6240 lathe handle 4-meter long shafts without workpiece vibration or flexing?
A: Machining a 4000 mm workpiece length introduces the risk of structural shaft deflection, whip, and tool chatter. The CA6240 controls this through its dense 3850 kg HT300 cast frame, an 400 mm bed guide span, a heavy MT5 tailstock with 150mm quill travel, and essential anti-vibration steady supports. For 4-meter shaft operations, the machine can be with a ¢20-125mm or ¢100-250mm steady rest (clamped to the bed) and a ¢20-80mm follow rest (clamped to the moving carriage) to provide continuous radial support directly opposing the cutting tool.
Q: What accessories are recommended on the CA6240 manual center lathe?
A: To maximize accuracy and efficiency in workshops, the manual CA6240 lathe supports several high-utility optional accessories:
-
Measurement & Setup: An integrated SINO 2-axis DRO (Digital Readout) for instant, error-free coordinate tracking, and an EU-type quick-change tool post (1 block + 4 holders) for rapid tool swaps.
-
Specialized Machining: A ±15° taper turning attachment for cutting precise long conical tapers, and a carriage-mounted grinding attachment to finish shaft surfaces to cylindrical grinder tolerances.
-
Workholding Variety: Upgradeable with oversized ¢400mm 4-jaw chucks or ¢500mm face plates to lock down asymmetrical or large cast components.
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