Airtac MGC Stainless Steel Mini Cylinder MGC25X75S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC25X75S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 75mm 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
- Stroke75 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 MGC25X75S
The AirTAC MGC25X75S is a JIS-standard round-body mini cylinder, double acting, with a variable air cushion at both stroke ends. Unlike the fixed bumper pad on the plain MG, this adjustable cushion lets you tune the needle valve so the piston decelerates smoothly near end of travel, which makes the MGC25X75S a better fit for higher piston speeds and heavier moving loads without hammering the covers. With a 25 mm bore it delivers 245.3 N push and 206.1 N pull at 0.5 MPa, rising to 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical maximum of 50 kgf at 1.0 MPa.
Construction follows the MG family recipe: a SUS304 stainless barrel with covers and stainless block riveted and rolled onto it, plus a hard-chrome plated 10 mm rod (male thread M10x1.25) and a two-way piston seal that also stores lubricant. Air supply should be filtered to 40 um, operating pressure spans 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, temperature range is -20 to +70 C, and speed range is 30-800 mm/s. The fitted magnet (the S in the code) accepts CMSG, DMSG or EMSG switches, and a practical buyer insight: the 245.3 N push force at 0.5 MPa equals about 25 kgf, so a safe vertical working load is roughly 12 kg using the 0.6 rule of thumb.
Airtac MGC Stainless Steel Mini Cylinder MGC25X75S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC25X75S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 75 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 MGC25X75S
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×75 | 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 MGC25X75S Is Used
Conveyor stop and divert
The variable air cushion absorbs the impact of stopping moving cartons at 75 mm travel, protecting the covers at conveyor speeds the bumper MG would struggle with.
Packaging pusher
With 245.3 N push at 0.5 MPa (about 25 kgf), this cylinder pushes boxes or trays into chutes and cases, and the magnet feeds a CMSG switch for cycle confirmation.
Small parts ejection
On assembly and machining stations, the adjustable cushion lets the 10 mm hard-chrome rod eject machined or molded parts quickly yet settle gently at end of stroke.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC25X75S the Right Cylinder?
At 25 mm bore the MGC25X75S sits one step up from the smallest cushioned MGC (bore 20, 157.0 N push at 0.5 MPa) and below the 32 (402.2 N), 40 (628.3 N), 50 (981.3 N) and 63 (1557.9 N) sizes. If your load is light and speeds are low, the bumper-type MG in the same bore is the no-cushion alternative for diameters 20 to 40; choose the MGC when you need adjustable end-of-stroke deceleration. The 75 mm stroke is well inside the 500 mm maximum standard stroke for this bore, and non-standard strokes up to 800 mm can be made to order. Mounting is FA flange or LB foot, with I and Y rod knuckles available, and the built-in magnet supports CMSG, DMSG and EMSG position sensing. Ports are 1/8". For long strokes, support the load or use a guide to keep side loads off the hard-chrome 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 MGC25X75S FAQ
At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N. At 0.7 MPa those figures rise to 343.4 N push and 288.5 N pull, and the theoretical maximum is 50 kgf at 1.0 MPa. For sizing, treat about 0.6 of the 0.5 MPa push force (roughly 12 kg vertical) as a safe working load.
The cushion is adjustable at both ends: turn the needle to decelerate the piston smoothly before it reaches the cover, which suits higher speeds and heavier moving loads. It only decelerates the stroke end, though - it is not a lock or brake, and the MGC does not hold position on air loss. Use an external rod lock or pilot check valve for a held load.
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