
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC25X175S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 175mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
The AirTAC MGC25X175S is a double acting, JIS-standard round-body mini cylinder with a 25 mm bore and 175 mm stroke, fitted with a variable air cushion at both stroke ends. Unlike the bumper-style MG, the cushion needles let you dial in end-of-stroke deceleration, so this cylinder can run at higher piston speeds and move heavier loads without hammering the covers. At 0.5 MPa it delivers 245.3 N push and 206.1 N pull, which is roughly 25 kgf of push force; a common rule of thumb is to size the working load at about 0.6 of that, giving a safe figure near 15 kg.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with covers and stainless block riveted and rolled onto it, plus a hard-chrome plated (20 um) 10 mm rod with an M10x1.25 male thread. The two-way piston seal also stores lubricant, and ports are 1/8". Because the S code is in the model, a magnet is built in and CMSG, DMSG or EMSG switches can be mounted for position feedback. Operating range is 0.15-1.0 MPa (22-145 psi) with air filtered to 40 um, speeds of 30-800 mm/s, and temperatures from -20 to +70 C. Mounting is via FA flange or LB foot, with I and Y rod knuckles available.
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC25X175S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 175 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MG-series (JIS standard) datasheet. Barrel: SUS304 stainless steel (round-body, riveted construction); piston rod: carbon steel with 20µm hard-chrome plating. Thread options: PT (blank) / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB | Mounting: FA flange, LB foot. |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, plus I and Y knuckles. Thread PT (blank) / G / NPT.
With 245.3 N push at 0.5 MPa and speeds up to 800 mm/s, the variable air cushion lets boxes be kicked off a line quickly while the adjustable deceleration stops the piston smoothly instead of slamming the covers.
The 25 mm bore gives about 25 kgf of push (343.4 N at 0.7 MPa) for clamping cartons or seating light parts, and the cushion absorbs the arrival shock at higher cycle speeds.
The built-in magnet accepts CMSG, DMSG or EMSG switches, so the 175 mm stroke can be confirmed at both ends on automated fixtures, with the LB foot or FA flange mounting keeping the round body rigid.
At 25 mm bore, the MGC25X175S sits one step up from the smallest cushioned MGC (bore 20, 157.0 N push at 0.5 MPa) and below the 32 mm bore (402.2 N push at 0.5 MPa), so it suits light-to-medium duty points where a 245.3 N push at 0.5 MPa (343.4 N at 0.7 MPa) is enough. If your application runs slow and light and you do not need end-of-stroke deceleration, the bumper-style MG in the same bore is the no-cushion alternative for diameters 20 to 40. The variable air cushion is the reason to choose MGC: adjust the needle to soften arrival at both ends when speed or moving mass is high. Mount with the FA flange or LB foot and add I or Y rod knuckles if the tooling needs a pivot; the -S magnet supports CMSG, DMSG or EMSG reed or solid-state switches. Note that the cushion only decelerates the stroke end and is not a lock: if the load must be held against air loss, add an external rod lock or pilot check valve. For strokes near the 500 mm standard limit, guide the rod externally to limit side load.
Quick checklist
At 0.5 MPa the 25 mm bore gives 245.3 N push and 206.1 N pull; at 0.7 MPa it gives 343.4 N push and 288.5 N pull. The theoretical maximum at 1.0 MPa is 50 kgf. For sizing, treat about 0.6 of the 0.5 MPa push force as a safe working load, roughly 15 kg.
Adjustable cushion needles at both stroke ends throttle the exhaust near end of travel, decelerating the piston smoothly for higher speeds or heavier moving loads; it is an adjustable air cushion, not a fixed bumper pad. It only decelerates the stroke end and does not lock or hold position on air loss, so use an external rod lock or pilot check valve for a held load.
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