China Lockable double rod adjustable stroke ISO standard cylinder Manufacturer, Supplier, Factory

SOLH 4V series pilot-operated pneumatic directional control valves are mainstream industrial pneumatic components covering 5/2-way two-position and 5/3-way three-position configurations, specially optimized for driving reciprocating movement, mid-stroke positioning and pressure retention of double-acting pneumatic cylinders. Adopting high-precision spool valve core and built-in pilot actuation structure, this series features low friction resistance, sensitive switching action and low coil power consumption, widely deployed in automated assembly lines, packaging machinery, positioning fixtures and general pneumatic transmission systems. The five-port layout complies with universal industry standards: P serves as the main air supply inlet; A and B are two execution ports connected to the front and rear chambers of double-acting cylinders to control extension and retraction; R and S are exhaust ports configured with silencers to lower running noise. The 5/2-way type includes single-coil electric control and double-coil electric control variants. Single-electric-control valves rely on spring reset to return automatically upon power cut, ideal for conventional reciprocating actions and safety reset applications. Double-electric-control valves possess position memory without springs, locking the current cylinder position steadily after power off for long-time positioning and pressure holding. The 5/3-way three-position version provides three optional neutral modes: closed center (Type C) locks all ports for cylinder suspension locking and anti-drop protection; exhaust center (Type E) connects A/B ports to exhaust channels for pressure relief and free floating during manual commissioning; pressure center (Type P) feeds compressed air to both working ports for bidirectional balanced clamping. Available specifications range from 4V110 up to 4V410 with thread sizes M5, G1/8, G1/4, G3/8 and G1/2. Equipped with IP65 dustproof and waterproof coils supporting mainstream AC and DC voltages, the whole series supports oil-free operation and comes with a manual override button for convenient on-site testing and maintenance. It is the universal standard directional valve for mainstream industrial pneumatic automation.

At Richge, we specialize in high-quality switchgear components, including our Switchgear Drawer Outgoing Connection Wire. Designed for reliability and efficiency, our connection wires ensure seamless integration and robust performance in switchgear systems. Crafted from durable materials, these wires offer exceptional conductivity and long-lasting durability, even in demanding environments. Our commitment to precision engineering and rigorous quality control guarantees that every wire meets industry standards and customer specifications. Whether you're upgrading existing switchgear or building new systems, our outgoing connection wires provide the reliability and performance you need to ensure optimal operation and safety. Trust Richge for innovative solutions and superior quality in switchgear components.

SOLH M5 series 5/2-way spring return mechanical directional valves adopt unified M5×0.8 fine thread interfaces across the whole product lineup. These coil-free pneumatic valves switch air channels relying purely on external mechanical actuation force and automatically reset by built-in springs once external force is removed. They serve as core miniature pneumatic signal trigger components widely deployed for cylinder stroke limit positioning, in-position feedback signal transmission and local manual pneumatic switching on automated equipment. The complete series covers two major categories: mechanically actuated types (plunger, roller lever, unidirectional roller) and manually operated types (pushbutton, toggle lever, mushroom emergency button, rotary lock button), fully dimensionally interchangeable with mainstream AirTAC M5 series mechanical valves for direct drop-in replacement. The standard five-port layout consists of P main air supply inlet, A/B working ports connected to miniature double-acting cylinders, and two separate side exhaust ports R1/R2 reserved for miniature silencer installation to cut exhaust noise and block external dust ingress. A balanced sliding spool structure is adopted, which is immune to air supply backpressure interference; only light external force is required to complete stable valve switching with ultra-sensitive response. Multiple actuation heads are optional to fit diverse working conditions: M5B straight plunger for rigid contact positioning detection, M5R universal roller lever triggered by cams and baffles, unidirectional roller M5L for single-direction limit anti-misoperation, and various manual button & toggle styles for on-site manual jog control and emergency cut-off. Constructed with hard anodized aluminum valve bodies and wear-resistant NBR nitrile rubber seals, the valves support lubrication-free operation under filtered compressed air within 0.05~0.8 MPa, boasting a service life exceeding 10 million switching cycles. Custom multi-station manifold bases (M5M series) are available for centralized air feeding and modular integrated installation, together with matching adapters, micro silencers and quick connectors. Distinguished from 3/2-way S3 pilot valves, this 5-port M5 series can directly drive small double-acting cylinders or output pilot signals to actuate main solenoid valves. Typical scenarios include assembly fixture in-place detection, cylinder travel automatic reversing, on-site manual debugging and small automation pneumatic logic signal triggering.

Our company specializes in high-quality Low Voltage Switchgear Rings, designed for reliable and efficient power distribution. Our switchgear rings are engineered to provide robust performance in low voltage applications, ensuring secure and stable electrical connections. Constructed from durable materials, they offer long-term reliability and compliance with international safety standards. Ideal for use in various industrial and commercial settings, our switchgear rings enhance system safety and operational efficiency.

Switchgear Terminal Frame Product Background: Richge is a manufacturer of Switchgear Terminal Frames in China, specializing in producing high-quality structural components that provide robust support and secure mounting for electrical terminals within switchgear systems. Our terminal frames are engineered to enhance the stability and reliability of terminal connections, ensuring optimal performance in various operational environments.

Richge is a manufacturer of Interlocking Device for Switchgear in China, focusing on creating innovative and reliable solutions to ensure the safe and efficient operation of electrical switchgear systems. Our interlocking mechanisms are designed to prevent unauthorized or incorrect operations, thereby enhancing both safety and operational integrity.