The diamond engineering saw blade is manufactured by first pressing the cutter head and then welding it to the saw blank by high frequency welding or laser welding. This process does not limit the size and number of saw blades, and the welding heat (especially laser welding) has little effect on the substrate of saw blank. The rigidity and flatness of the saw blade are very high, which is of great benefit to the stability of quality.
Diamond engineering saw blades are also manufactured according to general (stone), special (asphalt, new concrete, reinforced concrete, etc.). Special pieces require further hardness and abrasiveness of materials, single or composite materials, strong and weak steel bars, and cement markings. , cutting machine power size, etc. to do it.
2. Shape Specifications:
Diamond engineering saw blades are equipped with nozzles, with key-type narrow nozzles and large U-shaped wide nozzles. Specifications range from dia105mm to dia1200mm, commonly used ¢300～600mm.
Table 4 shows the regular dimensions of diamond engineering saw blade.
Table 4. the regular dimensions of diamond engineering saw blade. Unit: mm
|Diameter (mm)||Segment Size (L*W*H，mm)||Segment Number|
3. Cutting Material:
Diamond engineering saw blades are commonly used for cutting or grooving of abrasive materials such as buildings, roads, walls, cement pre-products, refractory materials, and the like.
(1) Universal laser welding saw blade:
Suitable for cutting granite, marble, sandstone, limestone sandstone (lime-sandstone), reinforced concrete, old concrete, new concrete, hard brick, asphalt, and can be dry cut in many occasions. In principle, it can be used with old concrete slabs; but its lifespan is not long enough after cutting new concrete and asphalt for long time. And sharpness not good engouth while long-time cutting reinforced concrete with strong steel bars, pebbles or extra-hard quartz grains; Its better to use flat segment, turbo type segment or W-shape segmentm and saw blank with key slot and with heat sink. The middle substrate generally has a ¢12.7mm locating hole with a center hole spacing of 27mm.
Laser saw blades with turbo type segment are the most commonly used, and their applicability is wider. The cutter head is thin and the diameter is between 115 and 350. Table 5. shows the cutting material of laser welding saw blade with turbo type segment.
Table 5.he cutting material of laser welding saw blade with turbo type segment.
|Most suitable material||Good Cut||Cut but not|
Hard Natural Stones
Steel Pipe, Strut, etc.
Ductile & Cast Iron
hard paving stones
Field Stones(basalt, gneiss, Porphyre, etc.)
Steel Backed Masonry Wall
Suitable Cutting Material: new concrete, asphalt pavement, old concrete, weak reinforced concrete, etc., in principle, can be used with new mixed flakes; sandstone (sandstone), fire tile, etc., should be wet cut; in addition to new concrete, Outside of some sandstones, efficiency may be reduced when processing other materials;
Not suitable cutting material: stone, reinforced concrete, cobblestone pavement, etc.;
Not Suggest Cutting Material: glass, ceramic, strong reinforced concrete.
Regular purpose: mainly based on the ability to process concrete.
- 、Special-purpose Laser welding saw blades (including new mixed sheets, steel mixed sheets, asphalt sheets, wall saws, etc.)
- Laser welding saw blade for new concrete：
It can cut hard bricks, asphalt, weak reinforced concrete, refractory materials, some kind of sandstone, but the efficiency may decrease,
It Can not cut strong reinforced concrete; usually we use Big U or Key slot on steel core and welding with protect teeth for new concrete cutting.
- reinforced concrete Saw blade
High-frequency welding saw blades cannot cut without water. Laser-welded saw blades are used for wet cutting or intermittent dry cutting in principle. Pure dry cutting requires special design in combination with formula, base structure and diamond segment structure. reinforced concrete Saw blade should not be dried for a long time
- Cutting compatibility：The general trend of saw blade cutting object compatibility is listed below, which is generally irreversible, but not absolute.
Glass→fine ceramic→marble (microcrystalline stone)→granite (common ceramic)→reinforced concrete (old concrete, wall)→asphalt→refractory (partial sandstone)→new concrete (hard brick)
General-purpose saw blade usually wok with hand-held cutting machine, hand-pushing machine, multi-cutting machine, masonry/brick saw, high speed power saw, small hp walk behind saw (<35HP); Special purpose laser welding saw blade is usually used for hand push-cutting machine, bridge cutting machine, multinational profile machine, gantry cutting machine, Vertical multi cutting machine, horizontal cutting machine, cantilever cutting machine, hand cutting machine, masonry/brick saw, high speed power saw, up to 20 hp walk behind saw (¢500 or less ), more than 35 HP power flat saw (¢500 or more, cut asphalt, old mixed, abrasive material), small hp walk behind saw (<35HP, thin cutter head fast cut), wall saw machine
Small horsepower refers to ≤25HP manual electric fast sawing machine, ≤30HP gasoline floor saw; high horsepower refers to >50HP electric floor saw, >60HP diesel floor saw.
In Europe and the United States, the first requirement is the sharpness then consider cutting life. the ¢300/350 saw blade is multi-purpose hand held cutting machine, the power is 5~6HP and 7~12HP respectively, the cutter head is more turbine-shaped; ¢600～1200 Saw blades (especially old concrete sheets) use more high-power cutting machines (50 ~ 80HP), diesel power is more.
European laser welding saw blade safety standard BS EN13236-2001 request that the strength of the joint between the segment and the steel core, also the minimum bending strength of the diamond segment : small saw blade for hand-held cutting machine ≥600Mpa; saw blade for fixed or mobile cutting machine The film is ≥450Mpa; anti-breaking strength ≥900Mpa.