Airtac MGC Stainless Steel Mini Cylinder MGC25X150S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC25X150S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 150mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke150 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MGC Stainless Steel Mini Cylinder MGC25X150S
The AirTAC MGC25X150S is a double acting, JIS-standard round-body mini cylinder with a 25 mm bore and 150 mm stroke, fitted with a variable air cushion at both ends. Unlike a fixed bumper pad, the adjustable cushion needle lets you dial in smooth deceleration near end of stroke, so this cylinder tolerates higher piston speeds and heavier moving 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; applying the usual 0.6 safety factor gives a usable working load of about 15 kg, a sensible figure to size fixtures and tooling against.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with covers and stainless block riveted and rolled into place, plus a hard-chrome plated (20 um) carbon-steel rod and a two-way piston seal that also stores lubricant. The 1/8" ports accept PT thread, mounting is by FA flange or LB foot with I and Y rod knuckles available, and because this model carries the S magnet code, CMSG, DMSG or EMSG switches can be clipped on for position feedback. Operating range is 0.15-1.0 MPa (22-145 psi), 30-800 mm/s and -20 to +70 C.
Airtac MGC Stainless Steel Mini Cylinder MGC25X150S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC25X150S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 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.
Theoretical Output Force (Ø25mm)
| 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.
Model Code: Airtac MGC Stainless Steel Mini Cylinder MGC25X150S
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | 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.
Where the Airtac MGC Stainless Steel Mini Cylinder MGC25X150S Is Used
High-cycle push-off stations
The variable air cushion absorbs the kinetic energy of a fast-moving 25 kgf-class piston, letting small parts ejectors run at the upper end of the 30-800 mm/s range without cover impact.
Conveyor diverter and stopper actuation
With 245.3 N push at 0.5 MPa and adjustable end-of-stroke deceleration, the cylinder diverts cartons or totes smoothly, and the fitted magnet allows CMSG or DMSG switches to confirm extend and retract positions.
Packaging clamp and press-fit fixtures
The 343.4 N push force at 0.7 MPa (about 35 kgf) clamps cartons or seats light components, while the SUS304 stainless barrel and hard-chrome rod stand up to washdown-prone packaging environments.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC25X150S the Right Cylinder?
At 25 mm bore, the MGC25X150S 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), so it suits medium-light duty where end-of-stroke deceleration matters. If you do not need cushioning and stay within bore 20-40, the plain bumper-type MG is the lower-cost alternative. Size by the 0.5 MPa push force of 245.3 N (about 25 kgf) and halve it for vertical lifting, giving roughly 12.5 kg as a conservative vertical figure. The 150 mm stroke is well inside the 500 mm maximum standard stroke, so no made-to-order surcharge applies. Choose LB foot or FA flange mounting, add I or Y rod knuckles if the load pivots, and keep the S magnet if position sensing via CMSG/DMSG/EMSG is planned. For strokes near the long end of the range, support the rod or guide the load externally to limit side loading on the 10 mm rod.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting (LB / FA) & knuckle
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MGC Stainless Steel Mini Cylinder MGC25X150S FAQ
At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N; at 0.7 MPa those rise to 343.4 N push and 288.5 N pull. The theoretical maximum is 50 kgf at 1.0 MPa. For sizing, treat about 0.6 of the 0.5 MPa push force as a safe working load, roughly 15 kg, or halve the push force (about 12.5 kg) for vertical lifting.
The cushion is an adjustable air cushion at both stroke ends: turning the needle regulates deceleration so higher speeds or heavier moving loads stop smoothly instead of hammering the covers. It only slows the piston near end of stroke and is not a lock or brake, so use an external rod lock or pilot check valve if the load must be held on air loss. The S code means a magnet is fitted, enabling CMSG, DMSG or EMSG position switches on the SUS304 stainless barrel.
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