CNC Billet Cutting Saw -JBS-850
The CNC cutting saw JBS-850 is built for precision billet processing. Its horizontal circular cold saw is mounted on a concrete-structured frame that absorbs vibration and resists deformation. Dual horizontal guide rails and a hydraulic damping system ensure stable, accurate cutting. Automatic separation of inlet and outlet fixtures prevents blade collisions during operation.
This metal cutting saw is equipped with a SIEMENS PLC system for fast setup and intuitive control. Operators can choose between automatic, semi-automatic, and manual modes. The system stores key pipe data—such as blank diameter, current, and sawing parameters—for efficient recall and repeatable performance.
Internally, the machine features a gear-driven anti-backlash transmission and spline-connected blade flange for smooth torque delivery. Vertical clamping is handled by fixed and floating clamps with hydraulic actuation.
Here an AC servo motor and ball screw drive the feed system, while a chain-type conveyor removes chips efficiently. The JBS-850 performs reliably as a log cutting saw, blank cutting saw, and cnc cutting saw in high-volume, high-precision applications.
Specification Of JBS -850 Billet Cutting Saw
| Items | Unit | Specifications |
|---|---|---|
| Performance | ||
| Processed Billet Dia Range | mm | Φ150mm 、 Φ180mm 、 Φ200mm |
| Max Process Billet Length | mm | 12000 |
| Max Measuring Fixed Length | mm | -4500 |
| Spindle | ||
| Spindle Rotating Pattern | continuous variable transmission | |
| Overall Ratio | 29.859 | |
| Spindle Motor Power | kw | 55 |
| Saw Blade Dia | mm | 830 |
| Pressure Plate Flange Dia | mm | 340 |
| Feeding (X) | ||
| X Axis Travel | mm | 320 |
| X Axis Ball Screw (Dia x Lead) | mm | 63×10 |
| X Axis Servo Motor | kw | 1Fk7108 8kw |
| Fast Surface Speed | mm/min | 6000 |
| Clamping System | ||
| Drive Pattern | Hydraulic | |
| Vertical jaw travel | mm | 320 |
| Horizontal jaw travel | mm | 50 |
| Clamping Force | KN | 35-55 KN (2 sets) |
| Travel between feeding and discharging Clamp Fits | mm | 5 |
| Hydraulic System | ||
| Servo Motor Power | Kw | 22 |
| Hydraulic Pump Flow | L/min | 105 |
| Working Pressure | Bar | 120 |
| Oil Tank Capacity | L | 600 |
| Centralized Lubricating System | ||
| Size | AMO-II-150S | |
| Motor | w | 20w 220v/50HZ |
| Hydraulic Pump Flow | L/ Min | 0.15 |
| Working Pressure | Bar | 20 |
| Oil Tank Capacity | L | 4 |
| Air Cooling System | ||
| Air Flow | NM3/h | 300 |
| Working Pressure | Bar | 5-6 Bar |
| Chain Chip Conveyer System | ||
| Distance between the chip outlet and the ground | mm | 1000 |
| Conveying Speed | m/min | 2.5 |
| Motor | Kw | 0.55kw 380 v 50 Hz |
| Control System | ||
| NC System | Simens Simatic S7-1500 | |
| HMI | Touch Screen 10.4 Inch |
Mechanical Introduction of the Billet Cutting Saw
billet Cutting Saw Box
The Billet Cutting Saw is a high performance circular saw machine designed for accurate and efficient metal cutting. It handles steel billets, bars, pipes, and rods with ease, making it an essential cold cutting tool for modern manufacturing. This equipment is widely used in the metallurgical industry and steel pipe production.
The machine adopts a horizontal cutting method with carbide circular saw blades, ensuring smooth and precise cuts. Meanwhile, its robust concrete structure absorbs vibration and resists deformation, and the double horizontal guideways further enhance cutting stability and accuracy.
Powered by a variable frequency motor and belt gear transmission, the Billet Cutting Saw delivers consistent performance and energy efficiency. A Siemens control system ensures easy operation and high productivity. As a result, manufacturers achieve faster production cycles and reduced costs.
Beyond billet cutting, this circular saw machine also functions effectively as a bar cutting machine and pipe cutting machine, offering a versatile solution for various metal-cutting tasks. Whether you’re processing billets, bars, or pipes, the Billet Cutting Saw delivers consistent reliability, precision, and efficiency—ideal for high-volume production environments.
The guide mechanism of the cutting saw
The guide mechanism combines a carriage, preloaded roller linear guides, and an auxiliary pressure unit to ensure smooth cutting under heavy loads. The roller guides provide high rigidity and accurate linear motion. The auxiliary unit, with a hydraulic cylinder and wedge block, applies pressure during cutting and retracts during idle to reduce stress and save energy.
Its optimized design aligns the auxiliary rail with the largest saw blade for efficient force transfer and protection. This structure delivers high accuracy, reduces wear, and extends service life. Automatic unloading further lowers energy use and maintenance needs.
The Main Transmission System of the cutting saw
The machine is equipped with a powerful variable frequency motor. Through a combination of belt and gear transmission, the spindle motor drives both the spindle and saw blade at high speed, ensuring stable torque and efficient cutting performance.
Slide feed device
The servo motor transmits power through a precision reducer, driving the ball screw to move the saw box smoothly along the bed’s guide rail for accurate forward and backward motion.
Bed Base of The Sawing Machine
The billet cutting saw features a robust machine bed engineered for maximum stability and precision. Thick welded steel plates and internal rib reinforcements form a closed-box structure, delivering exceptional strength. High-strength concrete fills the interior to improve rigidity and vibration damping, ensuring consistent cutting accuracy.
Thermal or vibratory stress relief eliminates residual welding stress, guaranteeing long-term dimensional stability. Two high-precision linear guideways are mounted on accurately machined surfaces, providing smooth, precise motion for the saw head with superior load capacity and operational reliability.
This advanced design enhances performance for billet cutting saws, bar cutting machines, circular saw systems, and pipe cutting machines.
Saw Blade Guide/Shock Absorption
To ensure precise and stable cutting, the billet cutting saw integrates three guiding and damping units on both sides of the saw blade. These units actively suppress vibration during blade entry and exit, maintaining smooth operation and reducing cutting errors. Moreover, they prevent bending vibrations caused by high-speed rotation, which improves cutting accuracy and extends blade life.
Friction pads serve as lining materials, delivering flexible support and superior energy absorption. Their excellent damping characteristics provide efficient dynamic stability control, ensuring consistent performance for billet cutting saws, bar cutting machines, circular saw systems, and pipe cutting machines.
stable Clamping System
Each side of the saw blade features a hydraulic clamping unit composed of a horizontal clamp, a vertical clamp, and a clamping base. These units deliver multi-directional, stable clamping of the pipe billet, ensuring precise positioning and rigidity throughout the sawing process.
Hydraulic actuation provides strong clamping force and rapid response, making the system ideal for high-frequency, automated cutting operations. To enable quick blade retraction and prevent interference, each clamping unit includes an automatic separation function. After cutting, the clamps open a 5 mm gap, allowing the saw blade to exit smoothly and safely, improving cycle time and operational safety.
This advanced clamping design enhances performance for billet cutting saws, bar cutting machines, circular saw systems, and pipe cutting machines.
The Lift roller table at exit
A hydraulically controlled 140° V-type lifting roller with adjustable height supports the discharge end near the saw’s edge. This design ensures smooth billet transfer and prevents collisions with the clamping device . This mechanism ensures that tube billets pass smoothly through the clamping area without colliding with the fixture, enhancing safety and material handling efficiency.
The Chip cleaning device
A micro-motor drives a rotating brush that continuously cleans the sawtooth surface, ensuring cutting precision and extending blade life.
Servo Cut-to-Length Device
The feeding trolley is mounted on a vertically adjustable base and powered by a servo gear motor through a rack-and-pinion system, ensuring precise linear movement along guide rails.
A hydraulic clamping arm secures the billet firmly during feeding, while the lifting function of the base prevents interference between the billet and the fixture, guaranteeing safe and stable operation.
This advanced feeding system delivers high positioning accuracy and smooth material handling, making it ideal for billet cutting saws, bar cutting machines, circular saw systems, and pipe cutting machines.