German PROTEC tools PROTEC models PROTEC prices

PROTEC tools powered by electric motors or electromagnets, driving the working head through a transmission mechanism, are called power tools. They are hand-held operating tools that use low-power electric motors or electromagnets as power sources to drive the working head via a transmission mechanism. Power tools are divided into handheld and portable types; handheld power tools are more flexible, convenient, and widely used. Many varieties have become essential tools for production and daily life. There are numerous power tool brands. According to their functions and purposes, they are mainly classified into metal cutting power tools, grinding power tools, assembly power tools, and railway power tools. Common power tools include electric drills, electric grinders, electric wrenches and electric screwdrivers, electric hammers and impact drills, concrete vibrators, and electric planers.

PROTEC tool classification

1) Squeeze-exhaust suction cups expel all air from the cup by downward squeezing force, creating a negative pressure state inside to hold the workpiece. They have advantages such as simple structure, light weight, and low cost. However, the suction force is not large, so they are mostly used for workpieces with moderate dimensions that are thin and light. 2) Airflow negative pressure suction cups use an airflow control valve to inject compressed air from an air pump through a nozzle, forming a high-speed jet that removes air from the suction cup cavity, creating negative pressure to hold the object. If compressed air is available at the worksite, using this type of suction cup is convenient and low-cost. 3) Vacuum pump exhaust suction cups connect the vacuum pump to the suction cup via an electromagnetic control valve. When the control valve evacuates air, negative pressure forms in the cup cavity to hold the object. Conversely, when the control valve connects the suction cup to the atmosphere, the suction force is lost, releasing the workpiece. The suction force of vacuum pump suction cups mainly depends on the adsorption area size and the vacuum degree inside the cup wall (referring to the thinness of the air in the inner q cavity). This type of suction cup is reliable and provides strong suction, but requires a vacuum pump and airflow control system, resulting in higher costs. 4) Mechanical clamping type: The structure of a straight-bar dual-cylinder translational gripper involves fingers mounted on a straight bar with finger mounting seats. When pressurized gas enters the rod-side chambers of the single-acting dual cylinders, the two pistons move toward the center, clamping the workpiece; when no pressurized gas enters, springs push the two pistons outward, releasing the workpiece. To ensure synchronized piston movement, a flow divider valve is installed in the cylinder intake line. This type of end effector is used in loading and unloading assembly workstations.

PROTEC tool precautions

Large saws are commonly used for wide and thick wooden boards; small saws are used for narrow and thin wood materials; coarse saws are commonly used for cross-cutting; fine saws are used for tenon heads and shoulders; saws with larger kerf sets are used for hardwoods and wet wood, while saws with smaller kerf sets are used for softwoods and dry wood. When using them, attention must be paid to the safe operation methods for various types of saws: 1) Before using a frame saw, adjust the blade angle with the knob; conventionally, it should form an angle of 45° with the plane of the wooden frame. Tighten the tension rope with the turnbuckle to keep the blade taut and tight. When starting the cut, hold the saw handle firmly with the right hand and place the left hand at the starting point, gently pushing and pulling a few times. Do not apply excessive force; do not twist left or right during sawing. Apply heavier force when pushing the saw forward and lighter force when pulling it back, maintaining a uniform rhythm. Hold the part being cut steady with your hand when nearing completion. After use, loosen the blade and hang it in a secure location. 2) When using a crosscut saw, apply balanced force with both hands to prevent the saw from drifting toward the side with greater force. When correcting a skewed cut, do so slowly to prevent binding or breaking the blade. 3) When using a wire saw, do not pull too forcefully or too quickly to avoid breaking the wire. During sawing, the operator's head must not be positioned above the upper end of the bow frame to avoid facial injury if the wire breaks. 4) Regularly check the sharpness of the blade and the stability of the saw frame and handle. Repair blades with dull or uneven teeth promptly. Also repair or restore damaged ropes, nuts, knobs, handles, and wooden frames before continuing use.

PROTEC tool types and features

Hydraulic tools include: hydraulic wrenches, dedicated electric pumps for hydraulic wrenches, hydraulic jacks, hydraulic bolt tensioners, hydraulic flange spreaders, hydraulic nut splitters, hydraulic pullers, etc. Hydraulic tools offer the advantages of high efficiency and convenience. 1) They generally use mineral oil as the working medium, allowing self-lubrication of relative moving surfaces and resulting in long service life. 2) Light weight, compact size, low motion inertia, and fast response speed. 3) Various hydraulic transmission components can be arranged conveniently and flexibly according to needs. 4) Automatic overload protection can be achieved. 5) Operation and control are convenient, enabling wide-range stepless speed regulation (speed regulation range up to 2000:1). 6) Linear motion is easily achieved. 7) Machine automation is easily realized; when adopting electro-hydraulic combined control, not only can a higher degree of automatic control be achieved, but remote control is also possible.

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