Cnc Pipe Cutting Machine

Our Story

CNC Pipe Cutting Machine

CNC Pipe Cutting Machine introduction

The DSQG series CNC pipe cutting machine represents a significant step forward in the realm of automated cutting solutions for the metallurgical industry. Designed to enhance efficiency, this machine integrates advanced technology and energy-saving features that cater to the specific needs of sectors such as metallurgy and petrochemicals.

Key Features and Innovations

One of the standout features of the DSQG series is its patented gear differential feed principle. This innovative approach facilitates precise longitudinal tool feed on a high-speed rotating cutter head. As a result, the machine dramatically improves the quality of cut steel pipe end faces, addressing common challenges like high energy consumption and machine vibration. It’s not just a simple cutting tool; it’s a comprehensive solution that ushers in a new era of performance in pipe cutting.

Automation and Efficiency Benefits

The DSQG CNC pipe cutting machine is equipped with Siemens CNC or PLC control systems. This allows for fully automated operations including steel pipe feeding, clamping, and quality measurement. Such automations lead to continuous processing cycles, significantly boosting work efficiency. Effectively, this means that companies can meet increasing production demands while maintaining quality standards. Compared to traditional methods, this machine offers a clear pathway toward enhanced production rates and improved end-product quality.

Unleash the Power

Advanted Features For The Pipe Cutting Machine

High processing efficiency

The utilization of the world’s leading three-tool simultaneous cutting program enables efficient processing, thanks to its exceptional cutting ability, stability, and convenient and swift tool change operation

Low operating cost

The rotating cutter head and fixed steel pipe clamping used for processing effectively reduce power consumption caused by the rotation of the steel pipe, resulting in lower machine power consumption, reduced operating costs, decreased noise levels, and improved environmental friendliness and energy efficiency. Additionally, when compared to saw blades, our solution offers significant advantages in terms of both price per ton and the number of single cuts due to its reduced tool wear.

High Machining Precision

The good quality of the cut and the high verticality of the end face help to reduce the margin during subsequent machining, thus significantly reducing the material cost. In contrast, the traditional sawing processing method of steel pipe end face and axis inclination is larger, the maximum inclination can reach 3 ~ 5mm.

High reliability, good accuracy retention, easy maintenance

The main shaft and feed of the equipment feature a simple structure, with the main parts undergoing heat treatment and grinding for enhanced durability and ease of maintenance. The chuck employs hydraulic clamping, ensuring a substantial clamping force that prevents deformation of steel pipe

The Feature of the Tool Rotary pipe Cutting Machine

(1) The new idea of high efficiency and energy saving processing of steel pipe is put forward innovatively

(2) The gear differential feed principle realizes the longitudinal feed of the tool on the cutter head and the efficient cutting of the steel pipe on the high-speed rotating cutter head

(3) A new method of multi-tool (3 tools) machining at the same time is proposed, which greatly improves the cutting efficiency

(4) A new feeding mechanism (Coupling ) is proposed, which improves the measuring precision of steel pipe (feeding precision 0.05mm, measuring precision 0.10mm)

(5) Compared with the traditional metallurgical industry using horizontal lathes and cutting saws, it has revolutionary progress in technology, overcoming high energy consumption, machine jitter, low cutting efficiency, short tool life, low production operation rate, poor processing accuracy and other defects

Specification of the Pipe Cutting Machine

Item	Unit	DSQG-13	DSQG-18	DSQG-25	DSQG-28
Cutted Pipe Dia	Inch	4 1/2 ”- 13 3/8 ”	7 ”- 18 ”	12 3/4 ”- 25 ”	14 ”- 28”
Max Pipe Wall Thickness	mm	32	40	50	60
Max Process Pipe Length	mm	6000-15000	6000-15000	6000-15000	6000-15000
Spindle Speed Range	rpm	50-400	40-320	35-150	30-140
Feeding Stroke	mm	50	75	90	100
Main Motor Power	Kw	37	45	55	55
Cutting Accuracy	mm	0.2	0.2	0.2	0.2
Machining pipe ends and pipes Perpendicularity of the axis	mm	0.15/100	0.15/100	0.15/100	0.15/100
Machining surface roughness	um	Ra6.3	Ra6.3	Ra6.3	Ra6.3

The Main Parts of the Pipe Cutting Machine

01.

1.0 Main Parts Of the Machine

The machine host’s main structural parts are welded using a steel plate structure, and then subjected to our company’s advanced steel plate welding pretreatment process, mature large welding process, heat treatment, and processing technology. This effectively eliminates welding stress while ensuring excellent rigidity and strength.

1.1 The headstock adopts thick steel plate welded structure and reasonably arranged reinforcement plate. The main shaft is made of heat-treated alloy steel for precision grinding. The main shaft has a large hole structure, equipped with imported high-precision tapered roller bearings, and adopts hydraulic oil cooling lubrication system. The whole shafting has excellent rigidity, low temperature rise and high precision

1.2 The machine uses the gear differential feed principle to realize the longitudinal feed of the tool on the high-speed rotating cutter head to avoid machine vibration and extend the life of the pipe cutting tool. This ensures the Coupling faces roughness and verticality. The Machine adopts servo feed method and the structure has excellent stability, high repeated positioning accuracy and adjustable feed speed. The above structure can ensure the high efficiency and high quality of the pipe cutting machine.

servo feeding system of pipe cutting machine

02.

2.0 Servo Feeding System

Servo feed screw support bearings are imported angular contact bearings, using grease lubrication, with extremely high accuracy, rigidity and load capacity. To protect the servo motor and the tool, a torque limiter is added between the ball screw and the feed motor. The accuracy of the machine is further improved by feeding the motion position from the servo motor’s high-precision absolute encoder to the CNC system for closed-loop control.

03.

3.0 Clamping System of the pipe cutting machine

3.1 Rigid Chuck:

After the steel pipe clamping, the left and right arms of the clamping hydraulic cylinder should be simultaneously driven through the slider to ensure synchronization of the clamping process. The arm is connected with both left and right sliders, which tightly clamp the steel pipe. Subsequently, lock the oil cylinder and fix both left and right sliders in place. This structural design guarantees stability of the pipe material during cutting.

3.2 Flexible Chuck:

The elastic chuck is controlled by a set of hydraulic valves with four cylinders, and the steel pipe is clamped by the elastic clamp clamp connected by the pull plate. Double chucks guarantee stability during cutting.

04.

4.0 Pipe Feeding Trolley

The feeding system is driven by servo motor through synchronous belt and ball screw, and the guide rail adopts rolling guide rail to ensure the accuracy and stability of the feeding car. The hydraulic clamping structure is driven by the hydraulic cylinder and is used for clamping and feeding the steel pipe. In order to ensure the synchronous movement of the two clamping arms, a pair of synchronizing mechanisms are arranged between the two clamping arms.

04.

5.0 Positioning stop

The stopper is mounted on the front side of the headstock for precise positioning of the steel pipe. Its main function is to ensure that the steel pipe is accurately positioned, and when the steel pipe is transported by the pinch roller, it effectively protects the machine from the impact of failure, absorbs the impact energy of the steel pipe and slows it down

05.

6.0 Auxiliary equipment of the pipe cutting machine

The loading bench is composed of a pipe material stopper, a material taking device, a pinch roller and a specification adjusting device, etc. Its main function is to provide pipe material processing support and realize material transfer (that is, pipe material is sent into).

06.

7.0 Fluid System of the pipe cutting machine

7.1 Lubricating System: Feed, rigid chuck, servo feed adopts centralized lubrication for each lubrication point (such as guide rail, ball screw pair, slide, etc.), is an open total loss system, lubricating oil will be mixed into the emulsion loss. The oil supply cycle and the amount of oil supplied at each lubrication point can be adjusted by electrical system control to achieve the best lubrication effect. The flow detection device is configured and connected to the PLC to inform the operator whether the lubrication system is functioning properly

7.2 The lubrication system of the spindle unit adopts the motor oil pump group to extract lubricating oil from the bed oil tank to achieve forced lubrication and cooling of the bearing, gear, and other lubrication points in the spindle box, which belongs to the pressure injection lubrication method. The system is equipped with a filter and an electronic flow switch to monitor the lubrication flow at critical points, ensuring timely notification to the operator regarding information about lubrication system of the pipe cutting machine

7.3 Automatic lubrication system of auxiliary engine bench adopts manual lubrication to achieve effective lubrication of each lubrication point. Pipe cutting machine systems are equipped with liquid level alarm devices.

07.

7.0 Fluid System

7.4 Emulsion cooling system: Equipped with high pressure, large flow emulsion cooling system, through the Threading Machine has its own tool head and tool rod cooling hole, the cutting fluid is directly sprayed to the cutting edge and cutting parts, quickly cooling tools and processing areas, improve the tool life and processing quality, and ensure the strong and effective cooling of cutting tools in the processing process and convenient removal of iron filings, so as to ensure the turning quality. At the same time, it is equipped with a chip extractor and a return pump for filtering the emulsion into the chip extractor tank back to the cooling tank. It is also equipped with a liquid level detection device.

7.5 Hydraulic system: For the hydraulic pump station is completely independent so it can be installed according to the requirements of the end user. The device is mainly responsible for controlling all hydraulic actions of the machine main engine and the loading platform. The hydraulic valve stand installed at the headstock contains all solenoid valves, pressure reducing valves and other hydraulic actuators to control the clamping and centering of the hydraulic chuck claws, the stopper and the balance of the feed slide and the tool holder. Equipped with liquid level detection, pressure detection, and oil temperature detection devices, this makes the pipe cutting machine efficient and reliable.

Pipe cutter head of the cnc pipe cutting machine

08.

8.0 Pipe Cutter head protection device:

The cutter head of the machine is a rotary cutter head equipped with cutter head protection cover to ensure safe production and prevent coolant splash

09-

9.0 Control System of the pipe cutter

SIEMENS numerical control system or PLC is used for automatic, semi-automatic and manual control of the equipment to realize automatic processing of the pipe body. The operation panel is equipped with manual/semi-automatic/automatic control mode selection and the display of the working state of the equipment, and is equipped with a touch screen for input processing parameters, such as pipe diameter, pipe hook type, pipe length, cutting speed and feed speed and other related parameters. At the same time, it also has the function of counting the number of tubes. User-friendly and easy to program, debug and maintain with a touch screen for human-machine interaction.”