CW6636 Universal Horizontal Pipe Threading Lathe Machine
The CW6636 is built around pipe work: turning pipe ends, cutting taper pipe threads, machining pipe bands and sleeves and drilling rod. Those jobs punish a general lathe, because the cut is interrupted and the thread has to hold gauge on a tapered form, so the machine is specified for power, rigidity and accuracy that ...
What This Machine Does
The CW6636 is built around pipe work: turning pipe ends, cutting taper pipe threads, machining pipe bands and sleeves and drilling rod. Those jobs punish a general lathe, because the cut is interrupted and the thread has to hold gauge on a tapered form, so the machine is specified for power, rigidity and accuracy that it keeps over time. A FANUC or SIEMENS CNC system controls it, with a pulse coder as the measuring element and semi-closed loop control on both longitudinal and cross feed. Beyond pipe work it handles ordinary cylindrical turning inside and out, facing and a range of thread forms. The compound rest slide can be powered on its own to cut a 300mm taper surface, or combined with powered longitudinal carriage feed to cut a long taper, which is how a consistent taper is produced over a length no compound slide could reach alone.
Why Buyers Choose This Machine
- Specified for pipe end turning and taper pipe threading rather than adapted from a general lathe
- FANUC or SIEMENS CNC control with pulse coder feedback on longitudinal and cross feed
- Semi-closed loop control keeps the thread form repeatable across a batch of pipe ends
- Compound rest powered alone cuts a 300mm taper surface without carriage movement
- Compound and longitudinal feeds combined cut long taper surfaces in one continuous pass
- Rigid high power construction suited to the interrupted cuts pipe work produces
- Also performs internal and external cylindrical turning facing and general threading
Where CW6636 Universal Horizontal Pipe Threading Lathe Earns Its Place
Problems It Solves
- General lathes are not rigid enough to hold thread gauge on interrupted pipe end cuts
- Hand-driven taper threading gives a different fit on every joint
- Short taper work on a manual compound is limited by slide travel and operator feed rate
- Long tapers cannot be produced consistently by compound feed alone
- Pipe work passed to outside threading shops adds cost and waiting time to every joint
- Machines that lose accuracy after a season of pipe work turn threading into rework
Who It Is For
- Oilfield and drilling equipment service shops threading casing and tubing
- Pipe and fitting manufacturers producing sleeves and bands
- Pipeline contractors preparing and threading pipe ends
- Heavy repair shops working on tubular components
- Distributors serving the oil gas and water pipe trades
Application Scenarios
- Cutting taper pipe threads on tubing and casing ends
- Turning and facing pipe ends before threading or welding preparation
- Machining pipe bands and pipe sleeves
- Rod drilling operations on the same machine
- Cutting short taper surfaces up to 300mm with the powered compound rest
- Long taper turning using combined compound and longitudinal feed
Technical Detail
Technical Features
- FANUC or SIEMENS CNC control system
- Pulse coder used as the measuring element
- Semi-closed loop control on longitudinal and cross feed
- Powered compound rest slide for 300mm taper surfaces
- Compound and longitudinal feed combined for long taper turning
- High rigidity and high power spindle drive
- Taper pipe thread and general thread cutting
- Internal and external cylindrical turning and facing
- Pipe end turning pipe band pipe sleeve and rod drilling capability
Specifications
| Machine type | Universal horizontal pipe threading lathe |
|---|---|
| Models | CW6636 |
| Control system | FANUC or SIEMENS CNC |
| Feedback element | Pulse coder |
| Feed control | Semi-closed loop on longitudinal and cross feed |
| Powered compound taper length | 300mm |
| Long taper turning | Compound rest combined with powered carriage feed |
| Main applications | Pipe end turning taper pipe thread pipe band pipe sleeve rod drilling |
| General operations | Internal and external cylindrical turning facing and thread cutting |
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
- Facing
- Taper pipe thread cutting
- Boring
- Drilling
Quality Control
- Spindle rigidity and run-out checked before the CNC system is commissioned
- Pulse coder feedback verified against measured axis movement on both feeds
- Powered compound rest checked over the full 300mm taper travel
- Sample taper pipe thread cut and checked with a thread gauge
- Control system run through a full cycle at the ordered supply voltage before shipment
Customisation Options
- FANUC or SIEMENS control specified with the order
- Chuck and pipe workholding selected for the pipe diameters you run
- Thread forms and gauges agreed before build
- Supply voltage frequency and phase built to your site
- Manual control plates and operating language prepared for your shop
How It Compares With the Alternatives
| General purpose manual lathe used for pipe work | A general lathe can cut a pipe thread once, but it is not built for the interrupted cuts and repeated gauge accuracy that threading production needs |
|---|---|
| Hand-held pipe threading dies | Dies are portable and fine for small sizes but cannot hold a taper thread form consistently on larger casing and tubing |
| Offsetting the tailstock for taper work | The powered compound gives a 300mm taper directly and combines with carriage feed for long tapers without disturbing centre alignment |
| Subcontracting pipe end preparation | Turning and threading pipe ends in house removes the transport and queue time on every joint |
Running the Machine
Step 1
Set the pipe in the chuck and support the far end so the interrupted cut does not shift the work
Step 2
Select the thread form and load or set the program on the FANUC or SIEMENS control
Step 3
Use the powered compound alone for taper surfaces up to 300mm
Step 4
Combine compound feed with powered longitudinal feed when the taper is longer than the compound travel
Step 5
Check the first thread with a gauge before running the batch
Step 6
Clear swarf from the bed and ways during pipe work to protect the slideways
Step 7
Keep the control cabinet closed and its filters clean in a dusty pipe yard
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Questions About CW6636 Universal Horizontal Pipe Threading L
Which CNC system is fitted?
FANUC or SIEMENS. Tell us which your shop already supports so the operators and your maintenance team are on familiar ground.
What pipe sizes can it handle?
Send us the pipe outside diameter, wall thickness and length you thread and we will confirm the capacity of the build we would quote.
How long a taper can it cut?
The compound rest alone cuts a 300mm taper surface. For longer tapers the compound feed is combined with powered longitudinal feed of the carriage.
Is the feed system closed loop?
It is semi-closed loop on both longitudinal and cross feed, using a pulse coder as the measuring element.
Can it do ordinary turning as well as pipe threading?
Yes. Internal and external cylindrical turning, facing and various thread forms are all within its range.
What supply voltage do you build to and how is it shipped?
Built to the voltage frequency and phase on your order, packed for export from Xi'an and shipped FOB CFR or CIF.
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 CW6636 Universal Horizontal Pipe Threading L
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.