EPK-2T-60

EPK-2T-60 windshield wiper drive mechanism

EPK-2T-60 is an aircraft electromechanical drive mechanism used in windshield wiper systems of helicopters and aircraft. The unit drives the wiper brush and provides reciprocating movement across the cockpit windshield. It is used on aircraft where reliable cleaning of the pilot’s forward glazing is required during rain, snow, wet contamination or ground operation. In Mi-8 / Mi-17 type helicopters, the mechanism is installed near the cockpit windshield and works as part of the windshield wiping system together with the wiper arm, brush, control circuit and electrical wiring.

Windshield cleaning function of EPK-2T-60

The EPK-2T-60 converts electrical power from the aircraft DC network into mechanical motion of the wiper arm. The output shaft moves through a limited angular sector, causing the brush to sweep over the windshield surface. This allows the crew to maintain visibility during precipitation and when water or contamination is present on the glass. The mechanism must provide stable movement without jamming, excessive play or irregular speed. Brush pressure, sweep angle, electrical supply condition and the mechanical condition of the drive all affect the quality of windshield cleaning.

EPK-2T-60 construction with D-70T motor

The EPK-2T-60 combines a D-70T DC electric motor and mechanical reduction system in one assembly. The D-70T is a closed, non-ventilated, two-pole motor with series excitation. The reduction mechanism includes two planetary gear stages, a bevel gear pair and a crank-rocker mechanism. This mechanical chain reduces motor speed, increases output torque and converts continuous motor rotation into oscillating wiper movement. The mechanism is compact enough for installation near cockpit glazing, while still providing the output force needed to move the wiper under aircraft operating conditions.

Automatic return and braking in EPK-2T-60

The EPK-2T-60 includes an internal interrupter and automatic return mechanism. When the system is switched to the reset mode, the mechanism brings the wiper brush to its initial parked position outside the main field of view. The interrupter also closes the dynamic braking circuit, helping stop the brush in the required end position. This function is important because a stopped brush in the pilot’s viewing area can interfere with visibility. Correct operation of the reset and braking circuit should be checked during maintenance together with the motor, switch circuit and mechanical drive.

Installation of EPK-2T-60 on Mi-8 and aircraft cockpits

On Mi-8 / Mi-17 helicopters, the EPK-2T-60 is mounted inside the cockpit above the forward windshield. The mechanism is fixed to structural elements of the cockpit canopy frame, and the output shaft passes through a sealing unit to the outside, where the wiper arm and brush are installed. On aircraft such as An-24 and An-26, similar installation may be located under the skin or inside the upper or side cockpit glazing frame area, depending on the aircraft modification. The mechanism is always mounted close to the glass it cleans.

Identification and ordering of EPK-2T-60

Before ordering EPK-2T-60, the aircraft type, installation side, required sweep angle, condition and documentation set should be confirmed. The unit may be requested for operational replacement, repair stock or overhaul support of the windshield wiper system. If the item is intended for Mi-8 / Mi-17 installation, it is useful to confirm the wiper arm, brush, control switch and wiring condition as well. For acceptance, the buyer should clarify passport availability, test records, connector configuration, serviceability documents and whether interchangeability with EPK-2T-90 is required.

Product Type: Aircraft windshield wiper drive mechanism / electromechanical actuator
Designation: EPK-2T-60
Alternative Designations: ЭПК-2Т-60, EPK2T-60, ЭПК2Т-60
Function: Drive of windshield wiper brush and automatic return to parked position
Application / Where Used: Aircraft and helicopter windshield wiper systems
System / Installation Area: Cockpit windshield cleaning system
Compatible Aircraft / Equipment: Mi-8 / Mi-17 helicopters, An-24, An-26 and other aircraft according to applicable documentation
Installation Location: Inside cockpit near forward glazing; on Mi-8 / Mi-17 above the windshield on cockpit frame structure
Motor Type: D-70T DC electric motor
Motor Design: Two-pole, closed, non-ventilated, series-excitation motor
Transmission Design: Two-stage planetary reduction gear, bevel gear pair and crank-rocker mechanism
Automatic Return: Built-in reset / parked-position return mechanism
Braking Function: Dynamic braking circuit through internal interrupter
Power Supply: 27 V DC ±10%
Current Consumption: Not more than 2.6–3 A
Output Torque: 50 kgf·cm
Output Shaft Sweep Angle: 50°–65°
Brush Pressure on Glass: 1.6–2 kgf
Electric Brushes: MGS-7, 2 pcs per unit
Operating Modes: Start mode, first speed, second speed, reset / return mode
Start Mode Speed: Approximately 145 oscillations per minute, operation not more than 5 minutes
First Speed: 64–90 double strokes per minute
Second Speed: 38–60 double strokes per minute
Condition: As applicable
Technical Documentation: Product passport, aircraft maintenance documentation, wiring diagram and installation documentation if available

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.