Sakae SH40JHK-ZU-3S1R3G-10621B Heavy Duty Proportional Joystick

The Sakae SH40JHK-ZU-3S1R3G-10621B is a robust, proportional joystick from the SH40 series, designed for demanding industrial and mobile applications. It features three independent axes (X, Y, and twist or thumbwheel Z), each equipped with a conductive plastic potentiometer for smooth, long-lasting output. The joystick is spring-returned to center on all axes, providing intuitive control for cranes, forestry equipment, agricultural machinery, and remote vehicle systems. The model includes a rugged metal shaft and sealed housing rated IP65.

Electrical Specifications

Each axis uses a conductive plastic potentiometer with a resistance value of 10 kΩ (standard, linear taper). The potentiometers offer an electrical angle of ±20° from center (40° total travel). Resolution is essentially infinite, with output smoothness better than 0.1%. Independent linearity is ±2% maximum. The wiper current rating is 10 mA maximum, and power rating is 0.5 W per element. The joystick provides a 3-pin output per axis (common, wiper, reference). Recommended load resistance is ≥ 10 kΩ to maintain linearity.

Mechanical Construction

The joystick features a zinc-alloy die-cast body and a stainless steel shaft (diameter 16 mm) with a threaded tip (M6) for knob attachment. The gimbal mechanism uses ball bearings for low friction and consistent feel. Centering springs are factory-set but accessible for tension adjustment. The shaft boot is made of oil-resistant rubber, providing IP65 sealing when properly mounted. The mounting hole requires a 40mm diameter cutout with four M4 screws on a 50mm x 50mm pattern. Overall dimensions: 110mm (height above panel) x 85mm (width) x 70mm (depth below panel).

Environmental Ratings

Operating temperature range: -40°C to +85°C, making it suitable for outdoor and cold storage applications. The joystick is rated IP65 against dust and low-pressure water jets (front panel side). Vibration resistance: 10G at 10-500 Hz (IEC 60068-2-6). Shock resistance: 50G (11 ms half-sine). It is salt spray resistant per ISO 9227 (48 hours). The potentiometers are sealed against dust and moisture. The unit is CE marked and RoHS compliant.

Output Configuration and Wiring

The SH40JHK-ZU-3S1R3G-10621B provides a 15-pin D-sub connector (male) for easy connection. Pinout: pins 1-3 for X axis (1: ref+, 2: wiper, 3: ref-), pins 4-6 for Y axis, pins 7-9 for Z axis. An external 5V or 10V reference voltage (DC) is required; the wiper outputs a proportional voltage. For PLC integration, the analog outputs (0-5V or 0-10V) can be directly connected to analog input modules (e.g., Siemens SM331, OMRON AD04). The joystick includes an optional deadband adjustment (factory set to 5% of travel).

Typical Applications

This joystick is used in: crane remote controls, forklift proportional steering, robotic manipulators, camera positioning systems, and test stands. The three-axis version (X, Y, twist) is ideal for controlling translation and rotation (e.g., pan, tilt, roll). The conductive plastic pots provide smooth output without steps, essential for proportional hydraulic valves. The heavy-duty construction withstands harsh industrial environments, including exposure to oils, solvents, and dust.

Installation and Maintenance

Mount the joystick on a flat panel (2-6mm thickness) using four M4 screws. Ensure the rubber seal is compressed to achieve IP65 rating. Connect the D-sub cable (not supplied, use shielded cable) to the PLC analog input module. The joystick is passive (requires external excitation). For long cable runs (>5m), use a buffer amplifier to avoid signal degradation. Maintenance includes periodic inspection of the shaft boot and connector. The potentiometers have a wear life of 5 million cycles; replacement parts are available from Sakae.

Ordering Information

Complete model: SH40JHK-ZU-3S1R3G-10621B. The breakdown: SH40 series, JHK = joystick with grip (no grip actually), ZU = three axes with twist, 3S1R3G = spring return center on all axes, 10621B = custom resistor tolerance and connector option. The joystick is supplied without a knob (accepts standard M6 threaded knobs). Sakae provides a datasheet (SH40 series catalog) and a 1-year warranty. For non-standard outputs (e.g., 4-20mA), external signal conditioners are required.