China KQ2F straight push-in fitting Manufacturer, Supplier, Factory

Richge is a manufacturer of High Voltage Electrical Insulators in China, specializing in producing high-quality insulators designed to ensure reliable performance and safety in high-voltage electrical systems. Our insulators are engineered to withstand extreme electrical stresses and environmental conditions, providing effective insulation and protection for electrical components.

8E Interlock Lever for Switchgear Product Background: Richge is a manufacturer of 8E Interlock Levers for switchgear in China, specializing in high-precision components that ensure reliable operation and safety in electrical systems. Our interlock levers are designed to provide secure and efficient control mechanisms within switchgear assemblies.

SOLH HLS / HLSL twin-shaft slide cylinders adopt line-contact cross roller guides, delivering much higher rigidity, repeat positioning accuracy and eccentric load resistance than HLQ ball guide models. Two variants are available: standard HLS with side-mounted compact cylinder for medium-small loads without severe offset; symmetrical HLSL with centered cylinder and dual parallel rollers for heavy loads, large eccentric torque and ultra-precision demands. Bore sizes cover 6–25 mm and strokes 10–150 mm. Twin piston rods provide powerful thrust and anti-torsion performance, while built-in floating joints eliminate lateral deflection stress. The base supports 3-direction mounting holes, the slide carriage reserves multi-surface fixture threads & positioning pins, and magnetic ring plus sensor slots come as standard. Adjustable air buffers, hydraulic shock absorbers and external mechanical stops are optional accessories. Operating temperature ranges from -20℃ to 70℃. Widely used in semiconductor, medical automation, machine tool jigs and other heavy-duty ultra-precision transfer & clamping positioning stations.

KQ2P push-in plug is a dedicated tube stopper for SOLH KQ2 one-touch pneumatic fittings, interchangeable with SMC KQ2P. It is inserted directly into fitting tube ports for temporary or permanent sealing and pressure testing. Made of PBT+PP body and NBR oil-resistant seal, it works within -5℃~+60℃ across vacuum and compressed air systems. Unlike KQ2C outer protective cap, KQ2P seals the internal air passage. Reusable and compact, widely adopted for idle port blocking in automation pneumatic circuits.

SOLH 4A series 5/2-way and 5/3-way air-operated directional control valves are the full pneumatic counterpart of the classic 4V electromagnetic solenoid valve series. Driven entirely by external pneumatic control signals with no coils or electrical parts inside, this valve achieves inherent explosion-proof safety and serves as the core control unit for non-electric pneumatic loops, hazardous explosive areas and safety interlock systems. It adopts high-precision spool configuration and robust aluminum alloy housings, sharing identical installation dimensions and flow characteristics with the 4V series for seamless direct replacement and upgrade between electric-driven and full-pneumatic control schemes. The standard five-port layout follows industry universal specifications: P for main air supply inlet, A and B as working ports connected to two chambers of double-acting cylinders for extension and retraction regulation, R and S as exhaust ports compatible with standard silencers to reduce operational noise. The 5/2-way lineup supplies single pneumatic control and double pneumatic control options. Single air-controlled models switch upon receiving control air signals and automatically reset by built-in springs once the control pressure disappears to deliver fail-safe protection. Double air-controlled variants feature no return springs and lock the current spool position persistently after control air is disconnected, supporting long-duration positioning and pressure retention without sustained control air input. 5/3-way versions are exclusively double air-driven with three selectable neutral configurations: closed center (Type C) seals all ports to lock cylinders and prevent vertical falling; exhaust center (Type E) vents A/B ports to atmosphere for pressure release and manual commissioning; pressure center (Type P) feeds compressed air to both working ports for synchronous clamping and force balance adjustment. Suitable for filtered compressed air within 0.15~0.8 MPa working pressure, the whole series supports lubrication-free operation and works reliably from -20℃ to +70℃. Widely applied in chemical plants, painting workshops, mining and other explosion-risk environments, it cooperates with mechanical valves, hand-operated valves and air pilot valves to build complete all-pneumatic logic control systems for double-acting cylinders.

Tulip Contact is a high-precision electrical connector manufactured by Rihcge. Used in high-current transmission equipment, named for its unique "tulip" shape, the main feature is to provide electrical connections with high reliability and low contact resistance, which are designed to withstand high current and high frequency plug and unplug operations.