是当切割物体时，被切割物体板面温度低，变形小且保持被切割物体原有材料特性的一种切割技术。尤其城市燃气行业的管道冷切割技术，现如今已经到各大燃气公司的普遍认同。切割时无火花，不管是钢铁管还是PE管，都不会因为切割时产生火花而发生爆炸事故。从而大大减少了施工时事故率，保证了人生安全。

现如今冷切割的方式有以下几种：锯切割、线切割、超高压水切割、激光切割等。

万泽锦达冷切割工具的优势： 我们的风动切割机优势：无火花冷切割。尺寸准确；切口平整，无裂纹、重皮、毛刺、凹凸、缩口、熔渣、氧化物、铁屑等；快速省里。切口端面与管子轴心线要垂直，倾斜偏差Δ≤管子外径的1%，且≤3mm。PE管无变形。经济效益高，更便捷。

矿用风动切割锯，又称气动切铁锯，矿用风动锯轨机，矿用无火花切割锯，矿用轨道钢切割锯，矿用U型钢切割机，矿用管道切割锯，手持式无火花切割机，小型防爆切割锯等等，（根据其用法不同名称也不尽相同）。

FDJ-120、FDJ-180
主要技术参数：
型号 功率 耗气量 切割厚度 有效切割 锯片速度 重
FDJ-120 0.5KW 0.6m3每分 0-30mm 120mm 60m 6kg
FDJ-180 1.0KW 1.2m3每分 30-50mm 180mm 90m 10kg
FDJ-230 1.5KW 1.5m3每分 50-120mm 230mm 120m 16kg

主要用途：
因其安全性好，重量轻，操作简单。广泛应用于：高危，安全系数要求特别高的工作环境，如化工.治炼厂，天然气管道，高危潮湿的隧道，水下及狭窄的空间作业，尤其是高瓦斯防爆矿井。

一台小巧轻便的切割锯

小巧：它的尺寸只有“62*22*24公分"，轻便：它的重量只有“5.5公斤"；

一台多种功能的切割锯

可用于煤矿井下轨道、工字钢、管道、电缆、角钢、结构钢、U型钢、链条、锚杆、锚索等，以及石油、天然气管道等、另外也可用一些化工厂切割管道、无火花切割。

Product overview:
Pneumatic hand cutting saw is my company for high risk, safety factor particularly demanding work environment, such as chemical. Refinery. Natural gas mining. High risk wet underwater tunnel, and narrow space operations, especially in high gas coal mine explosion.
Shanxi million of new multi Zejin pneumatic mining machinery and equipment limited company independent research and development of hand-held cutting tools. It uses Taiwan imported pneumatic motor as power output, uses compressed air as power source, and does not use power. The pneumatic handheld cutting saw is not only light in weight, simple in operation and convenient to carry zero spark, but also to improve work efficiency. This product is safe and reliable. It is a pneumatic cutting tool in high risk industry.
Characteristic:
It is suitable for cutting all kinds of steel pipe, aluminum, copper, iron and other bl pipe rod. The cutting section is smooth and the precision is high.
The cooling cycle system makes the cutting surface of the workpiece accurate and accurate, without edge, and improves the service life of the saw blade, and is suitable for a long time sawing.
Product technical beters:
Brand: up to Zejin million
Model: FDJ-120
Type: hand saw blade
Surface treatment: semi cast chromium plating
Full length: 1350mm
Width: 15mm
Tooth distance: 0.2mm
Thickness: 0.1mm
Sawing b: 1200mm
In order to work safely, we need to pay attention to the following points:
1, use the weight of the saw to control the cutting pressure. This weight is enough for softer materials. Too much pressure can reduce the speed of the saw blade. For harder materials, the speed of rotation of the saw blade can be reduced by pressure. The cutting is to keep the saws straight. Any twist or skew of the sawblade may reduce its service life
2. When the air motor is closed, the stem is released.
3. Before replacing the saw, be sure to disconnect the air hose and push the stem to release the pressure of Madane.
4, adjust the handle clockwise to release the tension on the sawing guide rod. Then release the lock of the side panel so as to open the side panel. Then remove the blade from the drive wheel and release it from the sawing guide rod.
5. The saw blade must remain moving before the next cutting begins. The saw blade can't contact any surface when a pneumatic saw.
6, understand the material needed to cut, if necessary to reduce the speed of rotation of the saw blade by reducing the pressure of the air.
7, ensure that the required cutting material is firmly fixed to prevent its movement.
8. When pneumatic air motor is operated, the stem is pressed with the finger, and then the cutting is started.
9. When the air hose is disconnected, the air hose valve is closed. Before disconnecting, open the air valve and decompress the hose.
Product overview:
Pneumatic hand cutting saw is my company for high risk, safety factor particularly demanding work environment, such as chemical. Refinery. Natural gas mining. High risk wet underwater tunnel, and narrow space operations, especially in high gas coal mine explosion.
Shanxi million of new multi Zejin pneumatic mining machinery and equipment limited company independent research and development of hand-held cutting tools. It uses Taiwan imported pneumatic motor as power output, uses compressed air as power source, and does not use power. The pneumatic handheld cutting saw is not only light in weight, simple in operation and convenient to carry zero spark, but also to improve work efficiency. This product is safe and reliable. It is a pneumatic cutting tool in high risk industry.
Characteristic:
It is suitable for cutting all kinds of steel pipe, aluminum, copper, iron and other bl pipe rod. The cutting section is smooth and the precision is high.
The cooling cycle system makes the cutting surface of the workpiece accurate and accurate, without edge, and improves the service life of the saw blade, and is suitable for a long time sawing.
Product technical beters:
Brand: up to Zejin million
Model: FDJ-120
Type: hand saw blade
Surface treatment: semi cast chromium plating
Full length: 1350mm
Width: 15mm
Tooth distance: 0.2mm
Thickness: 0.1mm
Sawing b: 1200mm
In order to work safely, we need to pay attention to the following points:
1, use the weight of the saw to control the cutting pressure. This weight is enough for softer materials. Too much pressure can reduce the speed of the saw blade. For harder materials, the speed of rotation of the saw blade can be reduced by pressure. The cutting is to keep the saws straight. Any twist or skew of the sawblade may reduce its service life
2. When the air motor is closed, the stem is released.
3. Before replacing the saw, be sure to disconnect the air hose and push the stem to release the pressure of Madane.
4, adjust the handle clockwise to release the tension on the sawing guide rod. Then release the lock of the side panel so as to open the side panel. Then remove the blade from the drive wheel and release it from the sawing guide rod.
5. The saw blade must remain moving before the next cutting begins. The saw blade can't contact any surface when a pneumatic saw.
6, understand the material needed to cut, if necessary to reduce the speed of rotation of the saw blade by reducing the pressure of the air.
7, ensure that the required cutting material is firmly fixed to prevent its movement.
8. When pneumatic air motor is operated, the stem is pressed with the finger, and then the cutting is started.
9. When the air hose is disconnected, the air hose valve is closed. Before disconnecting, open the air valve and decompress the hose.