Flat motors / Saw Arbor motor

JS-Technik GmbH is specialized on a wide range of challenges in the professional drive technology field. One of our focuses is on flat motors, three-phase motors, frequency inverters and geared motors.


JS flat motors combined with a brake unit are also used as circular saw motors. Our flat motors have a right-hand or left-hand thread at the end of the shaft, depending on the individual case.  From 1.1 kW to 2.2 kW, the drives are available with an input voltage of 230 V; from 1.5 kW to 7.5 kW, with an input voltage of 400 V. In many cases, electric motors converted to flat motor are needed to be designed to match customer's individual requirements.  Here the narrow design is crucial. However, the main application of this type of electric motor is in circular saws.

Circular saw motor / circular saw motor with spacer ring




Electric motor + saw blade + reducing ring

Motor sizes and powers

On this page, you will find a selection of flat motors in aluminium design of the size 58 -81 with a power of 1.1 kW, 1.5 kW, 1.8 kW, 2.2 kW, 3.0 kW, 4 kW, 5.5 kW or 7.5 kW.

Electronic brake units

Electronic brakes are used to decelerate asynchronous motors with squirrel-cage rotor and 1PH AC capacitor start motors so that motion is stopped within 10 seconds after the motor is turned off. Brake switches are available for external installation in 1.1 - 7.5 kW motors.

Duty cycle of a JS- flat motor

JS offers flat motors rated on S6 duty cycle. Here is a short overview of the common duty cycles for electric motors: S1 (continuous duty), S2 (short time duty), S3 (intermittent periodic duty without starting, without braking), S4 (intermittent periodic duty with starting, without braking), S5 (intermittent periodic duty with electric braking, with starting), S6 (continuous operation with intermittent load = period at load followed by a period at no load without motor stopping), S7 (continuous operation with electric braking), S8 (continuous operation with periodic changes in load and speed).

Your partner for circular saw motors

With our qualified personnel, our large stock of motors and our own final assembly, we are a perfect partner for businesses that need external expertise in a large spectrum of issues – whether it is a specific brake motor, circular saw motor, electric motor with frequency inverter, special shaft, specific line voltage or motors with different degrees of protection.

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