Airtac MG Stainless Steel Mini Air Cylinder MG25X450S
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG25X450S is a genuine double acting JIS-standard round-body mini air cylinder with a Ø25mm bore and 450mm 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
- Stroke450 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed anti-impact bumper pads
About the Airtac MG Stainless Steel Mini Air Cylinder MG25X450S
With a 25 mm bore pushing 245.3 N at 0.5 MPa, this MG25X450S is a double acting JIS round-body mini cylinder with a long 450 mm stroke and a built-in magnet. The SUS304 stainless barrel and hard-chrome plated 10 mm rod shrug off damp, washdown and outdoor conditions that quickly ruin painted-steel minis, and the riveted covers keep the body compact. Because the footprint follows the JIS mini-cylinder standard, standard JIS brackets and I/Y rod knuckles bolt straight on.
Plan real work at roughly 145 N (about 0.6 of the 0.5 MPa push force), and for vertical lifts count on raising around 12 kg with a 2:1 margin. The fixed anti-impact bumper pads soften the direction change at each stroke end - they decelerate only and are not an adjustable cushion. The fitted magnet means CMSG, DMSG or EMSG switches can be clipped on for end-position sensing without any rework.
Airtac MG Stainless Steel Mini Air Cylinder MG25X450S Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG25X450S |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| 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 | Fixed anti-impact bumper pads |
| 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 MG Stainless Steel Mini Air Cylinder MG25X450S
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB / CB / SDB | Mounting: FA flange, LB foot, CB clevis, SDB pivot bracket (with CB). |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, CB clevis, SDB pivot block, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MG Stainless Steel Mini Air Cylinder MG25X450S Is Used
Bottling line pusher
The 245.3 N push at 0.5 MPa (343.4 N at 0.7 MPa) clears empty PET bottles or cartons off a conveyor lane, and the stainless barrel handles frequent washdown.
Small parts lift in assembly fixtures
Lifts about 12 kg vertically with a 2:1 margin - enough for a fixture pallet or a small housing raised through a 450 mm transfer stroke.
Position-verified gate on a packaging machine
The built-in magnet with a CMSG or DMSG switch confirms the gate is fully open or closed before the next cycle starts.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG25X450S the Right Cylinder?
At 450 mm stroke this sits near the top of the standard range for a bore 25 MG (max standard 500 mm). If 245.3 N push at 0.5 MPa is marginal, step up to the 32 mm bore (402.2 N); if the load is light, the 20 mm bore (157.0 N) saves space. A long thin 10 mm rod on a 450 mm stroke is side-load sensitive - guide the load externally rather than letting the rod carry lateral force. Note that a plain MG drifts when air is lost, so add a pilot check valve or external lock if the load must stay put. Mount with LB foot, FA flange, CB clevis or SDB pivot, and the -S magnet is already fitted for CMSG/DMSG/EMSG switches.
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 / CB / SDB) & 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/impact settings and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MG Stainless Steel Mini Air Cylinder MG25X450S FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa it pushes 343.4 N and pulls 288.5 N. Theoretical maximum is 50 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, and the port is 1/8".
Yes - the S in MG25X450S means the piston magnet is factory-fitted, so AirTAC CMSG, DMSG or EMSG reed/electronic switches mount directly on the 25 mm barrel to signal stroke-end positions.
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