What Is the QK1219 CNC Pipe Threading Lathe?
The QK1219 CNC Pipe Threading Lathe is a specialized CNC lathe designed for turning and threading oil pipes, casing, tubing, drill pipes, couplings, and other tubular workpieces. Compared with a general-purpose CNC lathe, the QK1219 features a Φ200 mm spindle bore and dual large-bore chuck arrangement, allowing long pipes to pass through the headstock and be supported close to the machining area. Its specified pipe threading range is Φ50–193 mm, making it suitable for many medium-diameter oilfield tubular components. CNC control allows programmed turning and threading, helping manufacturers achieve consistent machining in repetitive pipe production.
Applications
The QK1219 is particularly suitable for the oil and gas, pipeline, drilling equipment, and pipe manufacturing industries.
Typical workpieces include:
- Oil casing
- Oil tubing
- Drill pipe
- Pipe couplings
- Pipe joints
- Long hollow shafts
- Other tubular components
It can be used for both pipe production and pipe-end machining where repeatability and stable clamping are important.
Main Functions
The QK1219 is not limited to thread cutting. It combines several common CNC turning processes on one machine:
Machining Process | Typical Purpose |
Facing | Finishing the pipe end |
OD Turning | Machining external diameter |
Boring | Machining internal surfaces |
Grooving | Producing relief or connection grooves |
Chamfering | Preparing pipe edges |
Threading | Machining internal/external threads |
Depending on the CNC system, tooling and application, the series can process API 5B, metric, imperial, tapered and other thread forms.
Key Parameters of QK1219
Parameter | QK1219 |
Pipe Threading Range | Φ50–193 mm |
Spindle Bore | Φ200 mm |
Swing Over Bed | Φ630 / Φ800 mm |
Swing Over Carriage | Φ340 / Φ520 mm |
Guideway Width | 550 mm |
Max. Workpiece Weight | 3 tons |
Distance Between Centers | 1000 / 1500 / 2000 / 3000 / 4000 mm |
These parameters show an important point for pipe buyers: the Φ200 mm spindle bore is the spindle passage, while Φ50–193 mm is the specified pipe threading range. They should not be treated as the same parameter.
Machine Configuration
For oil pipe machining, workpiece support and clamping are just as important as the basic turning capacity.
The QK1219 series can be configured with 3-jaw or 4-jaw chucks, while pneumatic and hydraulic chuck options are also available. Turret options include 4-, 6-, 8-, and 12-station configurations. CNC choices include Siemens, GSK, and FANUC, depending on the required machine configuration. Hydraulic tailstock, hydraulic steady rest, rear pipe support, chip conveyor, and automatic pipe loading/unloading equipment are also available as options.
For a production-oriented configuration, large-bore dual chucks, hydraulic steady rest, 12-station hydraulic turret, workpiece probe, and FANUC CNC can provide a practical setup for repetitive oil-pipe machining.
FAQ
What pipe diameter can the QK1219 process?
The specified pipe threading range is Φ50–193 mm, with a Φ200 mm spindle bore.
Can the QK1219 machine API threads?
Yes. The series supports API 5B and other thread forms depending on the selected CNC system, tooling, pipe dimensions, and thread specification.
Why are two chucks useful for pipe machining?
Dual-chuck clamping provides support on both sides of the headstock, helping stabilize long tubular workpieces during turning and threading.
What information is needed before ordering?
Provide the pipe OD, ID or wall thickness, total length, material, thread standard, drawing, and production quantity. These details help determine the appropriate chuck, tooling, support, and CNC configuration.
For more machine information, visit Anyang Xinheng Machine Tool.
