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.

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Experience Cutting Excellence – Get Started!

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Composition of the Billet Cutting Machine

The Billet Cutting Saw consists of the main saw unit, hydraulic system for oil control, air cooling for blade temperature, and a centralized lubrication system for precision parts. It features a Siemens S7-1500 control system with a 10.4-inch touchscreen for advanced operation. Auxiliary equipment includes a magnetic sawdust chain, feeding trolley with measuring mechanism, and a saw blade changing device.

01 .Cut Saw Machine

Quality Rate :

★★★★★

The main machine consists of the saw tool box with pulley, main transmission device, slide feed mechanism, bed base, and other essential components for precise cutting operations.

02. Hydraulic System

Quality Rate :

★★★★★

The hydraulic station includes a motor, hydraulic pump, heater, water cooling, oil level indicator, oil tank, and valve stand, featuring oil temperature control, level monitoring, and pressure alarm, operating from +5°C to +45°C with water cooling.

03. Air Cooling System

Quality Rate :

★★★★★

The air cooling system cools the saw blade and cutting area using a pipe cooler, nozzle, and pipes. It lowers tooth and disk temperature, extends blade life, and reduces equipment load for efficient operation.

04. Central Lubricate

Quality Rate :

★★★★★

The central lubrication system provides precise, intermittent oil lubrication for guide rails, ball screws, and nut pairs. It operates at 2MPa pressure, 0.02kW power, 0.15L/min flow rate, with a 4L tank capacity.

05. Control System

Quality Rate :

★★★★★

The control system uses Siemens S7-1500 with integrated drive and feed servo motor. It features a 10.4-inch high-resolution touchscreen, offering advanced functionality and a user-friendly interface for efficient and precise operation.

06. Auxiliary Device

Quality Rate :

★★★★★

Auxiliary equipment includes a magnetic sawdust chain, a measuring mechanism with feeding trolley, and a saw blade changing device equipped with a cantilever hoist and electric hoist for easy maintenance and improved productivity.

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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

Note : The Specificaion on the standard basis , for steel bar cutting , if any detailed requirements , just let us know , we will send you back all the details the first tim

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Mechanical Introduction of the Billet Cutting Saw

01. Billet Cutting saw Box

The sawing box ensures precision, durability, and stability. Made from Q345-B steel with stress-relief aging, it features four bearing bores machined in one pass for accuracy. Inside, a zero-backlash gear system uses quenched alloy steel gears and hardened shafts. Imported bearings from INA, NSK, and FAG provide smooth operation and long life. A load-relief structure prevents shaft deformation, while oil cooling improves thermal control and rigidity. The zero-backlash design reduces noise and gear impact, extending bearing life and enhancing efficiency. This advanced structure benefits billet cutting saws, log saws, blank saws, and CNC cut-off saws.

Guide Mechanism of the billet cutting saw

02. The guide mechanism of the cutting saw

The guide mechanism combines a carriage, preloaded roller linear guides, and a hydraulic-assisted pressure unit for smooth cutting under heavy loads. Roller guides ensure rigidity and precise motion, while the hydraulic unit applies pressure during cutting and retracts when idle to save energy. Its optimized design aligns the auxiliary rail with the largest saw blade for efficient force transfer and protection. This structure improves accuracy, reduces wear, and extends service life. Automatic unloading further lowers energy consumption and maintenance needs.

03. The guide mechanism 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.

04. The Slide Feeding device

The slide feed device uses a servo motor connected to a precision reducer, which drives the ball screw for smooth movement of the saw box along the bed’s guide rail. This design ensures accurate forward and backward motion, delivering precise positioning and stable cutting performance under heavy loads.

05. The Bed Base of the saw

The billet cutting saw features a robust bed with thick welded steel plates and internal ribs forming a closed-box structure. High-strength concrete inside improves rigidity and vibration damping for cutting accuracy. Stress relief ensures long-term stability. Two precision linear guideways on machined surfaces provide smooth motion, high load capacity, and reliability. This advanced design enhances performance for billet, bar, pipe cutting machines, and circular saw systems.

Billet Cutting Saw Blade Guide AND shock Absorption

06. Saw Blade Guide/Shock Absorption

The billet cutting saw uses three guiding and damping units on both sides of the blade to suppress vibration during entry and exit, ensuring smooth operation and reducing errors. These units also prevent bending vibrations from high-speed rotation, improving accuracy and extending blade life. Friction pads provide flexible support and excellent energy absorption, delivering dynamic stability and consistent performance for billet cutting saws, bar cutting machines, circular saw systems, and pipe cutting machines.

07. stable Clamping System

Each side of the saw blade has a hydraulic clamping unit with horizontal and vertical clamps plus a clamping base, ensuring multi-directional stability and precise positioning. Hydraulic actuation delivers strong force and fast response for automated cutting. An automatic separation function opens a 5 mm gap after cutting, allowing smooth blade retraction and improving cycle time and safety. This advanced design enhances performance for billet cutting saws, bar cutting machines, circular saw systems, and pipe cutting machines.

08. The Lift roller table at exit

A hydraulically controlled 140° V-type lifting roller with adjustable height supports the discharge end near the saw edge. It ensures smooth billet transfer through the clamping area, prevents collisions with fixtures, and enhances safety and material handling efficiency during cutting operations.

10. The Chip cleaning device

A micro-motor powers a rotating brush that continuously cleans the sawtooth surface during operation. This design prevents debris buildup, maintains cutting precision, and significantly extends the service life of the saw blade, ensuring consistent performance and reduced maintenance needs.

11. Servo Cut-to-Length Device

The feeding trolley is mounted on a vertically adjustable base and driven by a servo gear motor through a rack-and-pinion system for precise linear movement along guide rails. A hydraulic clamping arm secures the billet during feeding, while the lifting base prevents interference with fixtures, ensuring safe and stable operation. This advanced system delivers high positioning accuracy and smooth material handling, ideal for billet cutting saws, bar cutting machines, circular saw systems, and pipe cutting machines.