German HAROMAC tools HAROMAC models HAROMAC prices

HAROMAC tools are made of copper alloy. Due to copper's good thermal conductivity and its characteristic of being almost carbon-free, the heat generated in a short time when the tool rubs against or impacts an object is absorbed and conducted. Another reason is that copper itself is relatively soft, providing good compliance during friction and impact, making it difficult to produce tiny metal particles, so we hardly see any sparks. Therefore, explosion-proof tools are also called non-sparking tools. The materials for explosion-proof tools are beryllium bronze and aluminum bronze. Beryllium bronze alloys and aluminum bronze alloys do not spark upon impact or friction, making them very suitable for manufacturing safety tools used in explosive, flammable, strong magnetic, and corrosive environments. BeA-20C alloy withstands an impact energy of 561IJ in hydrogen containing 30% or in methane-air-oxygen mixtures containing 6.5-10%, without sparking or igniting after 20 impacts.

HAROMAC tool types

1) Frame saw. Also known as a rack saw, it consists of an I-shaped wooden frame, twisted rope and twist pieces, and a saw blade. Both ends of the saw blade are fixed to the frame with knobs, which can be used to adjust the angle of the blade. After the rope is tightened, the saw blade is taut and ready for use. Frame saws are classified into coarse, medium, and fine types based on blade length and tooth pitch. Coarse saw blades are 650—750mm long, with a tooth pitch of 4—5mm; coarse saws are mainly used for cutting thicker wood. Medium saw blades are 550—650mm long, with a tooth pitch of 3—4mm; medium saws are mainly used for cutting thin wood or cutting tenons. Fine saw blades are 450—500mm long, with a tooth pitch of 2—3mm; fine saws are mainly used for cutting finer wood and cutting tenon shoulders. 2) Knife saw. A knife saw mainly consists of a saw edge and a handle, and can be divided into single-sided, double-sided, and back-backed knife saws. Single-sided knife saws have a blade length of 350mm, with teeth on one side; depending on the function of the teeth, they can be divided into rip cuts and cross cuts. Double-sided knife saws have a blade length of 300mm, with teeth on both sides; generally, one side is for rip cuts and the other for cross cuts. Back-backed knife saws have a blade plate length of 250—300mm; the back of the back-backed knife saw is straightened with a steel strip, and the teeth are finer, available in rip and cross cut versions. 3) Groove saw. A groove saw consists of a handle and a saw blade, with the blade being approximately 200mm long. Groove saws are mainly used for cutting grooves in wood. 4) Panel saw. Also known as a hand saw, it consists of a handle and a saw blade, with the blade being approximately 250—750mm long and a tooth pitch of 3—4mm; panel saws are mainly used for cutting wider wooden boards. 5) Narrow hand saw. The saw blade is narrow and long, with a pointed front end, and a length of approximately 300—400mm. Narrow hand saws are mainly used for cutting narrow holes and slots. 6) Coping saw. Also known as a fret saw, its construction is similar to that of a frame saw, but the blade is narrower (approximately 10mm), mainly used for cutting arcs, curves, and other shapes. 7) Wire saw. Also known as a bow saw, it is made by bending a bamboo strip into a bow shape and stretching a wire between the two ends. Serrations are cut into the wire to create sharp edges for cutting. The wire is approximately 200—600mm long, and the saw bow is 800—900mm long. Wire saws are mainly used for cutting complex curves and opening holes.

HAROMAC tool usage

1) Select the appropriate saw blade for the workpiece. For example, use 14 teeth per inch for cutting solid or thick soft metals; use 18 teeth per inch for tool steel, iron pipes, hard metals, etc.; and use 24 teeth per inch for cutting metal sheets, metal pipes, and thin iron bars. 2) Push forward to saw, and lift gently when pulling back. 3) Choose a wrench of appropriate size according to the nature of the work. 4) When using an adjustable wrench, apply force towards the fixed jaw, never towards the movable jaw. 5) If the wrench opening is worn or slips during use, do not continue to use it to prevent slipping. 6) Do not use a wrench as a hammer for striking. 5) Do not slip a pipe over the handle of a wrench to increase torque. 7) Press the inner side of the first leg of the square against the edge of the wooden board, and draw along the inner side of the second leg with a pencil to mark a perpendicular line. 8) Select the appropriate screwdriver according to the size and shape of the screw head slot. 9) Do not strike the screwdriver handle with a hammer; replace handles that are damaged immediately. 10) Do not use a screwdriver as a chisel or lever. 11) Use an electrician's screwdriver to test current; do not use ordinary screwdrivers to test high voltage. 12) Do not grind the tip of a screwdriver to avoid damaging the hardened surface. 13) Do not keep screwdrivers in shirt or trouser pockets to avoid injury from collisions or falls.

HAROMAC tool usage

1) Explosion-proof tools provide safety assurance for personnel working in flammable, explosive, and corrosive environments, enhancing social safety and allowing workers to operate with greater peace of mind. After daily use, explosion-proof tools should undergo proper maintenance, which is crucial for their service life. Improper maintenance may prevent the tools from serving us for a long time. First, store the tools in a dry place to protect the working parts from damage. In daily work, after continuous striking 20 times, clean the attachments on the tool surface before reuse. Do not use continuously to prevent overheating due to prolonged friction, which may damage the tool. 2) After use, clean off surface dirt and deposits, and store in a dry, safe place. 3) Striking tools must not be used for continuous impacts; allow appropriate intervals after more than ten strikes, and promptly remove debris adhering to the product before continuing use. 4) Wrenches must not be used with excessive force, nor should sleeves or other metal bars be attached to extend the lever arm, nor should they be struck with a hammer (except for striking wrenches) to tighten fasteners. 5) Cutting-edge tools should be lightly touched against a grinding wheel in a water trough for sharpening; do not apply excessive force or contact the grinding wheel for too long. 6) During actual operation of striking tools, clear site debris and corrosive oxides from the working surface to prevent third-party impacts. Based on the above performance and usage, aluminum-copper alloys are more suitable for normal pressure equipment and environments with less stringent explosion-proof requirements (such as gas stations, small oil depots, etc.). Beryllium-copper alloy explosion-proof tools are suitable for more demanding environments (such as refineries, gas transfer stations, gas production plants, drilling teams, etc.). 7) Clean surface oil stains from all products before use, and refer to the instructions for steel tools.

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