Pneumatic Components Series

SOLH CDUJB ultra-compact free mount cylinder is developed for equipment with limited installation space. Compared with conventional CU series, its length is reduced by 64% and volume cut by 70%. The square compact body supports multi-surface direct mounting without extra brackets. The product lineup includes non-magnetic CUJB, magnet-equipped CDUJB and copper-free cleanroom CDUJS. Bore sizes range φ4~20mm, available in double acting and single acting spring return types with optional rubber cushion. Magnetized models match miniature magnetic switches for short-stroke precise motion and support oil-free operation. Widely applied in 3C electronics, semiconductor wafer positioning and medical clean automation. Magnetic shield plates are optional for densely arranged cylinders.

SOLH CU/CDU rectangular free mount cylinder features ultra-thin block structure with multi-surface mounting holes, enabling multi-angle direct installation without brackets to save equipment space. Complete variants include non-magnetic CU, magnet-equipped CDU, CDUK non-rotating rod and CDUW double guided rod models. Bore sizes φ6~32mm, available in single/double acting types with fixed rubber buffers on both ends for continuous oil-free operation. CDU series is compatible with CMSH and DMSH magnetic switches for position detection and tolerates partial side load. Widely used in 3C & semiconductor jigs, automation stoppers, light clamping positioning and small press-fit mechanisms for compact automated equipment.

SOLH MK six-surface mount compact cylinder is upgraded from MD cylinder with built-in anti-rotation mechanism. The piston rod anti-twist accuracy reaches ≤±0.5°, directly interchangeable with Airtac MD and SMC CQS series. Square thin body allows bracket-free installation on six sides and facilitates compact parallel layout of multiple cylinders. Variants include double acting MK, single acting MSK/MTK, MKD double rod and MKJ adjustable stroke models. Built-in magnetic ring optional with rubber end buffers and oil-free capability. Bore sizes φ6~32mm, widely applied in 3C precision tooling and short-stroke clamping positioning for automation requiring fixed workpiece angle in confined space.

SOLH CQS compact thin cylinder is dimensionally interchangeable with SMC CQS series and upgraded from CQ2 series. The square ultra-slim body features shorter overall length for high-precision short-stroke tasks in confined space. Variants include standard single rod, CQSW twin rod, CQSK non-rotating rod and XB24 long-life model. CDQS with built-in magnet supports multi-side mounting of magnetic switches. Equipped with low-friction oil-storage seal for oil-free operation and service life up to 5 million cycles, paired with fixed rubber buffers on both ends. Bore sizes φ12~25mm, widely used for pushing, clamping and positioning on precision fixtures of semiconductor and 3C electronics equipment for retrofitting and replacement.

SOLH CQ2 square compact thin cylinder is fully interchangeable with SMC CQ2 series. Its ultra-short square body reduces length by 50% compared with conventional tie rod cylinders to save installation space. It covers a complete bore range φ4~200mm with abundant variants: single rod, CQ2W twin rod, CQ2K non-rotating piston rod, optional air cushion and ultra-short stroke version. CDQ2 models with built-in magnet support multi-side magnetic switch mounting without protruding sensors. Standard rubber bumpers are equipped, and air cushion is optional for high-speed operation. Adopting oil-reserved low friction seal for oil-free operation with service life up to 5 million cycles, widely used for clamping, pushing and positioning in electronics, automotive and packaging automation.

SOLH SDA square ultra-thin compact cylinder is an economical compact pneumatic actuator. Its body length is only 1/2~1/3 of standard tie rod cylinders and supports embedded installation to save space. Mounting dimensions are interchangeable with Airtac ACQ and SMC CQ2 series. It offers comprehensive variants: double acting, SSA/STA single spring return, SDAD twin rod, SDAJ adjustable stroke and SDAS magnet-equipped models. Built-in rubber bumpers at both ends absorb shock and reduce noise. Grease-stored low friction seal enables long-term oil-free operation. Bore sizes φ12~100mm, suitable for short-stroke pushing, clamping and positioning, widely applied in 3C automation, packaging machinery and fixtures as a cost-effective solution for space-limited equipment.

SOLH RQ thin cylinder is interchangeable with SMC RQ/RDQ series. It adopts innovative ringless built-in air cushion structure with 3 times energy absorption capacity of CQ2 rubber buffer and 50% lower operating noise. The ultra-slim square barrel is 20% shorter than conventional air cushion thin cylinders, and mounting dimensions fit CQ2 and CQS for direct upgrade replacement. Variants cover non-magnetic RQ, magnet-equipped RDQ and lockable RLQ for vertical load anti-drop. Suitable for continuous high-speed reciprocation at 50~500mm/s. Bore sizes φ20~100mm and supports oil-free operation. Widely used in high-cycle automation loading/unloading, precision clamping and positioning requiring low impact and low noise.

SOLH MD multi-position free-mount compact cylinder is equipped with tapped mounting holes on six sides of the block body for bracket-free installation at any angle, 30%~50% thinner than standard round cylinders to fit narrow, high-density equipment layout. Five sub-models cover all working modes: standard single-rod double acting MD, single-rod single acting MSD (spring extend) / MTD (spring retract), anti-torsion double-rod MDD, and stroke-adjustable double-rod MDJ. Bore sizes range from 6 to 32 mm with standard strokes 5~60 mm. Each unit comes with built-in front rubber buffer and dual side slots for magnetic sensors; suffix-S stands for integrated permanent magnet compatible with CMSH/DMSH reed switches. The piston rod adopts integrated self-lubricating bushing for oil-free smooth operation. Double-rod variants eliminate lateral deflection from offset loads, while MDJ features rear adjustment screw for flexible stroke fine-tuning. Widely applied to light-duty clamping, ejecting, crimping and precise positioning of miniature jigs in 3C, semiconductor and general small automation machinery.

SOLH CQM high-rigidity guided thin cylinder is interchangeable with SMC CQM/CDQM. Built on CQ2 thin cylinder structure with integrated parallel double guide rods, it maintains the same body length as CQ2 and eliminates the need for external guides. Its lateral load resistance is 2~4 times higher than standard CQ2 cylinders, with piston rod rotation tolerance ≤±0.2°. Variants include non-magnetic CQM, magnet-equipped CDQM and CQM-XB24 long service life model. Fitted with rubber bumpers on both ends and supports oil-free operation. Bore sizes φ12~100mm, mounting dimensions compatible with CQ2/CQS. Ideal for short-stroke precision pushing and fixture clamping with offset load in electronics assembly automation.