Gap Bed Lathe Machine CS6240 CS6250B/C CS6266B/C
This gap bed group covers the CS6240, CS6250B/C and CS6266B/C, the heavier frames in the CS family for shops whose work outgrows a plain bed. The gap is what defines them: flat stock and irregular shapes can be brought in close to the headstock and machined at a diameter the bed itself would never clear, so flange, whe...
What This Machine Does
This gap bed group covers the CS6240, CS6250B/C and CS6266B/C, the heavier frames in the CS family for shops whose work outgrows a plain bed. The gap is what defines them: flat stock and irregular shapes can be brought in close to the headstock and machined at a diameter the bed itself would never clear, so flange, wheel and housing work stays in the shop. All three sizes perform internal and external turning, taper turning and end facing, and they drill, bore and broach grooves. Threading covers inch, metric, module and D.P. Each has a through-hole spindle bore for larger bar stock, and both inch and metric measuring systems are on the machine, so drawings in either standard are worked directly. Hand brake or foot brake is the buyer's choice, and the machines are built for 220V, 380V or 420V supply at 50Hz or 60Hz. Machines are packed in a plywood case and shipped from Shanghai.
Why Buyers Choose This Machine
- Gap bed takes flat stock and irregular shapes at diameters a plain bed cannot clear
- Three frame sizes in one family so capacity is matched to the work rather than guessed
- Inch metric module and D.P. threading across all three models
- Through-hole spindle bore on each model for larger bar stock
- Drilling boring and groove broaching on the same setup as turning
- Hand brake or foot brake and 220V 380V or 420V at 50Hz or 60Hz for different markets
- Plywood case packing with shipment from Shanghai port
Where Gap Bed Lathe Machine CS6240 CS6250B Earns Its Place
Problems It Solves
- Short large-diameter parts have to be subcontracted when the bed will not clear them
- Irregular castings cannot be mounted safely on machines without gap clearance
- Choosing one frame size for a mixed workload means paying for capacity you do not use or refusing jobs you cannot take
- Module and D.P. threads normally require a special change gear set
- Moving parts to a slotter for keyways loses the concentric setup
- Poorly packed heavy machines arrive with damage that delays commissioning
Who It Is For
- Heavy repair shops handling large diameter short parts
- Foundry and fabrication businesses machining their own castings
- General engineering shops that have outgrown a bench or plain-bed lathe
- Importers supplying markets with 220V 380V or 420V power
- Plant maintenance departments repairing wheels pulleys and flanged components
Application Scenarios
- Facing and boring large flanges wheels and covers in the gap
- Machining irregular castings and flat stock that will not clear a plain bed
- Internal and external turning of heavy shafts and housings
- Groove broaching in bores that would otherwise go to a slotting machine
- Bar work through the spindle bore in the larger frames
- Gear and worm repair threading in module and D.P. pitches
Technical Detail
Technical Features
- Gap bed for large diameter flat and irregular work
- Three frame sizes CS6240 CS6250B/C and CS6266B/C
- Internal and external turning taper turning and end facing
- Drilling boring and groove broaching
- Inch metric module and D.P. thread cutting
- Through-hole spindle bore for larger bar stock
- Inch and metric measuring systems fitted
- Hand brake and foot brake options
- 220V 380V or 420V supply at 50Hz or 60Hz
Specifications
| Machine type | Gap bed horizontal lathe |
|---|---|
| Models | CS6240 CS6250B/C CS6266B/C |
| Bed | Gap bed with removable gap section |
| Spindle bore | Through hole for bar stock |
| Threading | Inch metric module and D.P. |
| Measuring systems | Inch and metric |
| Braking | Hand brake or foot brake |
| Power supply | 220V 380V or 420V at 50Hz or 60Hz |
| Packing | Plywood case |
| Port of shipment | Shanghai |
Figures above are taken from the product information we hold. Send us your application and we will confirm the exact specification for the model quoted.
How It Is Built and What Can Be Changed
Operations Performed
- Turning
- Taper turning
- End facing
- Drilling
- Boring
- Groove broaching
- Thread cutting
Quality Control
- Bed alignment checked with the gap section fitted and removed
- Spindle bore run-out measured before the headstock is closed
- Inch and metric dials verified against measured test cuts
- Thread chart positions exercised across inch metric module and D.P.
- Brake and electrics tested at the ordered voltage before the machine is cased
Customisation Options
- Model selected from CS6240 CS6250B/C or CS6266B/C according to swing and length
- B or C build variant specified with the order
- Hand brake or foot brake and supply voltage set per destination
- Chuck face plate steady rest and tool post package quoted with the machine
- Plywood case packing and shipment arranged from Shanghai
How It Compares With the Alternatives
| Plain-bed lathe of the same centre height | The gap adds swing for short large-diameter work, which is the whole reason these frames exist |
|---|---|
| CS6140J Universal Lathes | The CS6140J is the lighter general-purpose frame; CS6240 and above take heavier and larger diameter work |
| Vertical lathe for disc work | A vertical machine suits large discs but cannot turn long shafts; these gap bed lathes cover both within their swing |
| Subcontracting large flange work | Machining flanges in the gap keeps the lead time and the tolerance under your own control |
Running the Machine
Step 1
Level the machine on a foundation suited to its weight before commissioning
Step 2
Keep the gap section fitted and bolted for all normal shaft turning
Step 3
Remove the gap only for large diameter work and check bed alignment when it is refitted
Step 4
Balance and clamp irregular castings carefully before starting the spindle
Step 5
Select the thread system and pitch from the chart before engaging the lead screw
Step 6
Carry out drilling boring and broaching while the part is still chucked
Step 7
Check the brake and lubrication at the start of each shift
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Questions About Gap Bed Lathe Machine CS6240 CS6250B
What is the difference between CS6240 CS6250B/C and CS6266B/C?
Frame size and capacity. Send us the maximum diameter, the length and the weight of your parts and we will confirm which model and variant covers them.
How much extra diameter does the gap give?
The gap adds swing for short parts close to the headstock within the gap length. The exact figures depend on the model, so ask us for the data sheet of the size you are considering.
Which thread systems can these machines cut?
Inch, metric, module and D.P.
How are the machines packed and where do they ship from?
They are packed in a plywood case and shipped from Shanghai port on FOB CFR or CIF terms.
What power supply do you build to?
220V, 380V or 420V at 50Hz or 60Hz. State your voltage phase and frequency on the order.
What accessories are supplied?
Chucks, face plate, steady rest, follow rest and tool post are quoted with the machine. Tell us your typical parts and we will list a set.
What are your payment terms?
30 percent by T/T on order and 70 percent before shipment, or an irrevocable L/C at sight.
Request a Quote on the Gap Bed Lathe Machine CS6240 CS6250B
Send us the work you need it to do, the voltage on your site and the port you ship to. We will come back with the model, the tooling and the lead time.