Characteristic
The company strives to always be on top of success, therefore it does not spare funds for new developments. Today, Sturm models feature completely different mechanics, and the build quality is at the highest level.
The Sturm technique assists in screwing and unscrewing screws, drilling different diameters, tapping and even pulling on anchors. Good equipment, according to the founders of the company, should not be expensive, this is what Sturm has been proving for 15 years.
Each model must be tested in real-life conditions. The products are supplied to the market with quality certificates from Rostest.
When choosing a screwdriver, it is worth considering the following characteristics:
- speed;
- number of revolutions;
- torque;
- battery type;
- availability of additional features.
Speaking specifically about the functionality of Sturm screwdrivers, the user has the opportunity to buy a tool with the following additional functions:
- reverse;
- spindle blocking, which is carried out in automatic mode;
- the ability to adjust the rotation speed;
- the presence of backlight;
- installed battery indicator;
- brake.
Cordless tools from this manufacturer are commercially available with two types of battery:
- nickel-cadmium;
- lithium ion.
The first ones are distinguished by their low cost, stable operation, regardless of changes in the ambient temperature. Special storage conditions are imposed on them, since they have a strong memory effect, therefore, while the devices are not in use, they should be completely discharged. Lithium-ion batteries have no memory effect, they have much more capacity, and the charge is held longer, they are much lighter.
The keyless chuck is standard on all Sturm products, as it saves the user time for tool changes and is much more convenient than a jaw chuck.
It is of two types:
- single-seat;
- two-clutch.
Changing the nozzle with a single-sleeve cartridge is done quickly, with one hand, in the second case, one hand pushes the first sleeve, and the other unscrews the second.
Principle of operation
In the design of cordless and mains screwdrivers there is an engine, on which the operation of the tool depends. The force generated by the motor is first transferred to the gearbox, and then to the spindle.
The clutch integrated in the gearbox is responsible for torque control. The spindle is equipped with a chuck and a holder, on which the equipment is placed. Any nozzle that will be used by the operator is inserted into the chuck and the socket in it. When the energy generated by the motor is converted and amplified, the rig begins its movement with a given person speed or set number of revolutions.
Operating rules and safety precautions
Any construction tool must be used in compliance with safety requirements and in accordance with the rules prescribed in the manufacturer's instructions.
So, there are the following rules:
- immediately stop working with the tool, from which there is smoke or a smell of burnt plastic;
- before work, the screwdriver is required to inspect and assess the presence of malfunctions;
- it is impossible to work with the equipment if the ambient temperature exceeds + 40 degrees;
- it is forbidden to independently change the configuration, replace parts, disassemble the battery;
- storage batteries are stored completely discharged away from metal objects in a dry room;
- the charger is disconnected from the mains if it is not needed, and the battery is removed from the power supply after it is fully charged (otherwise its capacity decreases);
- the handle of the screwdriver must be dry, without signs of grease and grease;
- The attachments are regularly cleaned and kept sharp.
Components
It is easy to find parts for Sturm screwdrivers - this is one of their main advantages. Any service will quickly and inexpensively repair the engine, gearbox or replace the cartridge.
The manufacturer tried to take into account the needs of consumers and supplied its products with good components. All models are supplied with an original charger, which also differs in the build quality and materials used. Some screwdrivers come with an additional battery, which allows you to use the tool until the task is complete.
All equipment fits into a special suitcase, which greatly simplifies the process of storing and transporting the screwdriver.