German ROLLER tools ROLLER model ROLLER price

ROLLER tools refer to electrical safety tools, which are various specialized tools and devices designed to prevent accidents such as electric shock, burns, falls, and stumbling, thereby ensuring the personal safety of workers. In power systems, to successfully complete tasks without causing personal injury, operators must carry and use various safety tools. For example, when inspecting operating electrical equipment, changing operating modes, or performing maintenance and testing, electrical safety tools are required; during line construction, climbing safety tools are needed; when working on live electrical equipment or in areas near live equipment, to prevent electric shock or arc burns, insulated safety tools must be used, etc. Electrical safety tools can be divided into four categories: personal protective equipment, insulated safety tools, climbing tools, and warning signs.

ROLLER tool classification

1) Screwdriver: A tool used to turn screws to force them into position, usually with a thin wedge-shaped head that can be inserted into the slot or recess of the screw head—also known as a "screwdriver". 2) Wrench: A hand tool with an open end or socket that uses the lever principle to turn bolts, screws, nuts, and other threaded fasteners. Wrenches typically have jaws at one or both ends of the handle to apply external force; applying force to the handle allows turning the bolt or nut held by the open end or socket. When using, apply external force to the handle along the direction of thread rotation to turn the bolt or nut. 3) Hammer: A tool used to strike objects to move or deform them. It is most commonly used to drive nails, correct shapes, or break apart objects. Hammers come in various forms; the common form consists of a handle and a head. One side of the head is flat for striking, while the other side is the hammer head. The shape of the hammer head can be like a claw (for pulling out nails) or wedge-shaped. There are also round-headed hammer heads. 4) Test pen: Also called a voltage tester pen, abbreviated as "electric pen". It is an electrician's tool used to test whether wires are live. The pen body contains a neon bulb; if the neon bulb lights up during testing, it indicates that the wire is live or is the live wire of a circuit. The tip and tail of the test pen are made of metal, while the pen shaft is made of insulating material. When using a test pen, you must touch the metal part at the tail end with your hand; otherwise, because the charged object, test pen, human body, and earth do not form a circuit, the neon bulb in the test pen will not light up, leading to a misjudgment that the charged object is not live. 5) Tape measure: A tape measure is a commonly used measuring tool in daily life. Steel tape measures are frequently seen, commonly used in construction and decoration, and are also essential household tools. They are divided into fiber tape measures, leather tapes, waist tapes, etc. Luban rulers, Feng Shui rulers, and Wen Gong rulers also belong to the category of steel tape measures. 6) Utility knife: A type of knife with a sharp blade, used for cutting wallpaper and similar materials, hence the name "wallpaper knife," also known as a "craft knife." It is frequently used in renovation, decoration, and the signboard industry. 7) Electrician's knife: An electrician's knife is a cutting tool commonly used by electricians. Ordinary electrician's knives consist of a blade, cutting edge, handle, and sheath. When not in use, the blade retracts into the handle. The root of the blade is hinged to the handle, featuring scale lines and markings; the front end forms a screwdriver tip, both sides have file surfaces, the cutting edge has a concave curved blade section ending in a point, and the handle has a protection button to prevent the blade from snapping back. The blade of the electrician's knife integrates multiple functions, allowing various wire connection operations to be completed with just one electrician's knife without carrying other tools, offering benefits such as simple structure, ease of use, and multifunctionality. 8) Hacksaw: Includes hand saws (for household use, woodworking), pruning saws (for branch trimming), folding saws (for branch trimming), bow saws, veneer saws (woodworking), rip saws (woodworking), and crosscut saws (woodworking). 9) Spirit level: A spirit level contains a bubble vial and can be used to inspect, measure, and debug whether equipment is installed horizontally. 10) Wire pliers: Wire pliers are a clamping and cutting tool composed of a plier head and handles. The plier head includes jaws, teeth, cutting edges, and a cutter. The functions of the various parts of the pliers are: (1) The teeth can be used to tighten or loosen nuts; (2) The cutting edge can be used to strip the rubber or plastic insulation of soft wires, and can also be used to cut wires and iron wires; (3) The cutter can be used to cut harder metal wires such as electrical wires and steel wires; (4) The insulating plastic tube of the pliers has a voltage resistance of 500V or above, allowing live wire cutting. 11) Needle-nose pliers: Also called long-nose pliers, mainly used for cutting thin single-strand and multi-strand wires, bending loops for single-strand wire connectors, and stripping plastic insulation. It is also one of the commonly used tools for electricians (especially indoor electricians). It consists of a pointed tip, cutting edge, and handles. The handles of electrician's needle-nose pliers are covered with insulating sleeves rated for 500V. Due to the pointed head, needle-nose pliers are suitable for operations in narrow spaces. The method for bending wire connectors with needle-nose pliers is: first fold the wire end to the left, then bend it clockwise to the right close to the screw. 12) Wire strippers: Wire strippers are one of the commonly used tools for indoor electricians, motor repair technicians, and instrument electricians; their appearance is shown in the figure below. They consist of cutting edges, wire crimping ports, and handles. The handles of wire strippers are covered with insulating sleeves rated for a working voltage of 500V. Wire strippers are suitable for stripping the insulation of plastic and rubber insulated wires and cable cores. The method of use is: place the wire end to be stripped into the blade opening of the plier head, squeeze the two handles together with your hand, and then release; the insulation will separate from the core wire.

ROLLER tool structural composition

The function of power components is to convert the mechanical energy of the prime mover into hydraulic pressure energy. This refers to the oil pump in the hydraulic system, which provides power to the entire hydraulic system. The structural forms of hydraulic pumps generally include gear pumps, vane pumps, and piston pumps. The function of actuating components (such as hydraulic cylinders and hydraulic motors) is to convert the pressure energy of the liquid into mechanical energy, driving loads to perform linear reciprocating motion or rotary motion. Control components (i.e., various hydraulic valves) control and regulate the pressure, flow, and direction of the liquid in the hydraulic system. According to different control functions, hydraulic valves can be divided into pressure control valves, flow control valves, and directional control valves. Pressure control valves are further divided into relief valves (safety valves), reducing valves, sequence valves, pressure relays, etc.; flow control valves include throttle valves, adjustment valves, flow divider-combiner valves, etc.; directional control valves include check valves, pilot-operated check valves, shuttle valves, directional valves, etc. According to different control methods, hydraulic valves can be divided into on/off control valves, fixed-value control valves, and proportional control valves. Auxiliary components include oil tanks, oil filters, oil pipes and pipe joints, sealing rings, pressure gauges, oil level and oil temperature gauges, etc. Hydraulic oil is the working medium that transmits energy in hydraulic systems, including various mineral oils, emulsions, and synthetic hydraulic oils.

ROLLER tool operation

1) The single-phase power cord of mobile electric machinery and handheld power tools must use three-core soft rubber cable, and the three-phase power cord must use four-core rubber cable; when wiring, the cable sheath should pass into the junction box of the equipment and be fixed. 2) Before using power tools, the following items should be checked: no cracks or damage to the housing and handle, correct and firm connection of the protective grounding wire or neutral wire, intact cable or soft cord, intact plug, normal, flexible, and undamaged switch operation, intact electrical protection devices, intact mechanical protection devices, and flexible rotating parts. 3) The insulation resistance of power tools should be measured regularly using a megohmmeter of 500V; if the insulation resistance value between the live parts and the housing does not reach 2M Ω, maintenance must be performed. 4) After repairing the electrical parts of power tools, insulation resistance measurement and insulation withstand voltage tests must be conducted; the test voltage is 380V, and the test time is 1 minutes. 5) The electrical circuits connecting electric machinery and tools should have separate switches or sockets, and residual current operated protective devices should be installed; the metal housing should be grounded; it is strictly prohibited to connect multiple devices to one switch. 6) The rated residual operating current of current-type residual current protective devices shall not exceed 30mA, and the operating time shall not exceed 0.1 seconds; the rated residual operating voltage of voltage-type residual current protective devices shall not exceed 36V. 7) The operating switch of electric motor tools should be placed within easy reach of the operator. When resting, leaving work, or in case of sudden power outage during work, the power side switch should be turned off. 8) When using portable or mobile power tools, you must wear insulating gloves or stand on an insulating mat; when moving tools, do not lift by the wire or the rotating part of the tool. 9) When using Class III insulated power tools in damp or acid-containing environments, or inside metal containers, reliable insulation measures must be taken and a dedicated supervisor must be assigned. The switch of the power tool should be located within easy reach of the supervisor. 10) The magnetic disk surface of magnetic chuck drills should be flat, clean, and rust-free; when performing side drilling or overhead drilling, measures should be taken to prevent the drill body from falling in case of power loss. 11) When using an electric wrench, the reaction torque support point should be firmly secured, and the nut should be properly tightened before starting.

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