SMC JMGPM25-30

The JMGP series double piston cylinder from the SMC Group combines two piston rods guided by a plain bearing and an integrated connecting plate, thereby reducing the space requirement compared with a standard compact cylinder with external guidance. It is available in ten piston diameters from 12 to 100 mm and covers sliding, lifting and clamping operations.

Features:
The double piston cylinder offered by SMC combines two parallel piston rods, which are rigidly connected to a connecting plate and guided by a plain bearing integrated into the housing. This design limits plate rotation and reduces the cantilever effect when absorbing transverse loads and torques, without relying on an attached external guide. Compared with a compact cylinder with additional guidance of the CXSM type, the overall length with a comparable piston diameter and stroke can be reduced by up to 48 % and the weight by up to 38 %, while the permissible transverse load increases by a factor of 6.6 and the accuracy of the anti-rotation function improves by up to 40 %.
Four connection orientations are possible: on the side on both sides, at the top or at the rear of the housing. Mounting follows the same logic, from above, from below or from behind, and several units can be installed side by side with a reduced centre distance, the value of which varies depending on the piston diameter. A magnet integrated in the piston allows electronic sensors to be fitted in the intended grooves.
The ordering code combines a prefix identifying the series (JMGP) and the guide type (M: plain bearing guide), a two-digit number for the piston diameter, a number after a hyphen for the stroke in millimetres, an optional letter for the port thread (omitted for metric thread, TN for NPT connection, TF for G connection from Ø40) and then a final suffix indicating the mounted sensor (blank if none is present) and its quantity: no letter for two sensors, S for a single one, n for a variable number.

Specifications:
• Available piston diameters: Ø12, Ø16, Ø20, Ø25, Ø32, Ø40, Ø50, Ø63, Ø80 and Ø100 mm, with paired piston rods of Ø10, Ø12, Ø16, Ø20, Ø25, Ø32, Ø40, Ø45, Ø56 and Ø71 mm
• Guide: plain bearing
• Operation: double-acting
• Medium: air
• Proof pressure: 1.05 MPa
• Operating pressure range: 0.15 to 0.7 MPa
• Ambient and medium temperature: 5 to 60 °C
• Piston speed: 50 to 300 mm/s for piston diameters Ø12 to Ø63, 50 to 250 mm/s for piston diameters Ø80 and Ø100
• Cushioning: elastic at both stroke ends
• Lubrication: not required
• Permissible stroke tolerance: +1.5/0 mm
• Standard strokes: 10, 20, 30, 50 and 100 mm (Ø12 and Ø16); 20, 30, 50, 100 and 150 mm (Ø20 and Ø25); 25, 50, 100, 150 and 200 mm (Ø32 to Ø100)
• Weight: from 0.09 kg to 10.87 kg depending on piston diameter and stroke
• Pneumatic port: M3 x 0.5 for Ø12, M5 x 0.8 for Ø16 to Ø25, 1/8 (Rc, NPT or G) for Ø32 to Ø63, 1/4 (Rc, NPT or G) for Ø80 and Ø100
• Mounting direction: top, bottom or rear
• Accuracy of the plate anti-rotation function, without load and with the piston rod retracted: ±0.07° for Ø12 to Ø25, ±0.06° for Ø32 and Ø40, ±0.05° for Ø50 and Ø63, ±0.04° for Ø80 and Ø100
• Permissible transverse load: from 0.2 kg to 24.5 kg depending on piston diameter and stroke, with an eccentric distance of zero
• Permissible torque on the connecting plate: from 0.04 N·m to 13.54 N·m depending on piston diameter and stroke
• Theoretical force: from 20 N to 5,543 N depending on piston diameter and operating pressure (0.2 to 0.7 MPa)

Standards:
• The RoHS marking confirms compliance with European requirements on the restriction of certain hazardous substances in electrical and electronic equipment. This compliance applies in particular to the position-sensing components that can be mounted on the housing.