China IP65 closed-loop feedback proportional valve Manufacturer, Supplier, Factory

Drawer door handle Switchgear door handle Product background: Richge is a manufacturer of Switchgear Door Handles in China, specializing in producing high-quality handles designed to ensure secure and convenient operation of switchgear enclosures. Our door handles are engineered for durability, ease of use, and reliable performance, enhancing the accessibility and functionality of switchgear systems.

SOLH CRBU2 ultra-thin free-mount vane rotary actuator is fully interchangeable with equivalent SMC models, available in bore sizes 10/15/20/30/40. Integrated cylindrical body enables bracket-free multi-directional fixing, 12% lighter than CRB2 series, perfect for concealed installation inside compact integrated machinery. Direct vane drive eliminates gear backlash with ultra-high angular repeatability of ±0.01°. Two vane variants: S single vane for max 270° swing, D double vane delivering double torque with limited 90°/100° rotation. Dual piping layouts are offered: standard side ports and suffix-E central axial ports. Optional suffix-W angle adjuster realizes infinitely adjustable stroke from 0 to 240°, and built-in magnetic rings support M9BW reed switches for PLC limit feedback. Low-friction composite sealing ensures oil-free operation with over 5 million service cycles. Widely applied to light-load high-frequency precision rotation tasks including 3C miniature jig turnover, vision camera positioning, screw tightening mechanisms and small-angle packaging switching. Compared with base-mounted CRB2 rotary cylinders, CRBU2 requires no mounting brackets and maximizes space efficiency, ideal for robot end effectors and narrow internal equipment layouts.

The Electrical Switchgear Bolt is a critical component designed to secure various parts of a switchgear assembly, ensuring stability and safety in high-voltage environments. Typically made from high-strength materials such as stainless steel or alloy steel, these bolts offer excellent resistance to corrosion, oxidation, and mechanical stress. Precision-engineered threads provide a tight, reliable fit, preventing loosening under dynamic electrical load conditions. The bolts may feature additional treatments like galvanization or passivation, enhancing their durability and lifespan in harsh environments. Available in various sizes and configurations, these bolts can be customized to meet specific application needs.

SOLH RSQ fixed-height pneumatic stopper cylinders serve as standard limit actuators for automated conveyor systems. Equipped with ten interchangeable rod ends including hydraulic buffer lever styles for heavy shock absorption, they support four-side magnetic switch fitting and oil-free long-cycle operation. Differing from height-adjustable RSG models, its fixed rigid frame cuts on-site debugging time greatly. Our stable mass production ensures sufficient spot stock; these stoppers are widely deployed on electronics assembly lines, roller conveyors and heavy pallet positioning stations globally, delivering reliable workpiece blocking with affordable cost and strong impact resistance.

SOLH HLQ / HLQL twin-shaft slide cylinders adopt recirculating ball linear guides, including HLQ compact standard version with side-mounted cylinder and ultra-rigid symmetrical HLQL model. Bore sizes range from 6 to 25 mm with strokes 10–150 mm. The twin parallel piston rod design delivers strong thrust and excellent anti-torsion & anti-rotation performance. A built-in floating joint between piston and slide carriage offsets eccentric lateral loads. The base features 3-direction mounting tapped holes, while the slide carriage provides multi-surface fixture mounting holes and positioning pins; side slots for magnetic reed switches and built-in magnet come as standard. Multiple buffer options are available: double / single adjustable air buffer, hydraulic shock absorber and external stop blocks for smooth reciprocation and high repeat positioning accuracy. HLQ fits medium-small loads with limited space, while symmetrical HLQL handles heavy loads and severe eccentric offset. Widely used for automatic transfer, precision clamping and linear positioning in 3C, semiconductor assembly and testing equipment.

SOLH ACK angle cylinder integrates integrated compound motion of standard 90° rotation / optional 180° turning plus linear downward clamping, with bore sizes ranging from φ25 to φ63. It features a three-guide-groove supporting structure as the core design, which brings superior structural rigidity and strong resistance to eccentric loads, achieving high angular positioning accuracy of ±1.5°, better than ordinary rotary clamp cylinders. Two structural types are available: ACK with single pressure plate for narrow workpieces and ACKD double pressure plate for wide workpieces; counterclockwise left rotation (L) and clockwise right rotation (R) are selectable to match on-site layout. Working cycle: piston rod retracts and lifts up → rotates to avoid workpiece interference → extends downward for clamping; release runs in reverse order for resetting. The piston rod is made of heat-treated alloy steel, the cylinder tube undergoes hard anodizing, matched with imported high-performance sealing rings to realize excellent wear resistance, corrosion resistance, low air leakage and long service life. Four bottom through holes support direct installation and flange mounting; built-in sensor grooves facilitate magnetic switch assembly to monitor clamp and release status. Each bore is equipped with fixed standard clamping stroke; the maximum clamping force of φ63 reaches 1050 N under 0.5 MPa operating pressure. The working pressure ranges 0.15~1.0 MPa with wide temperature adaptability from −20℃ to 80℃. It is extensively adopted in machine tool tooling, welding positioning, anti-shifting fixing for stamping processes, fixture clamping of electronic trays and positioning for turnover mechanisms. It replaces separate rotary and clamping cylinders to simplify mechanical layout and save installation space. Select proper bore size with theoretical clamping force ≥ actual load × 1.5 safety factor, and reserve 3~5 mm stroke margin against mechanical collision.