Airtac MTG Stainless Steel Mini Cylinder MTG25X25S
The AirTAC Airtac MTG Stainless Steel Mini Cylinder MTG25X25S is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø25mm bore and 25mm 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
- Stroke25 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM10×1.25
- CushionFixed anti-impact bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MTG Stainless Steel Mini Cylinder MTG25X25S
The MTG25X25S is a JIS-standard round-body mini cylinder built as a single acting PULL unit: an internal spring holds the rod extended at rest, and compressed air retracts (pulls) it on the work stroke. With a 25 mm bore and 25 mm stroke it delivers about 132.6 N of pull at 0.5 MPa and 215 N at 0.7 MPa, already net of the spring, through a 10 mm hard-chrome rod with an M10x1.25 male thread and a 1/8" port. Working pressure spans 0.2-1.0 MPa (28-145 psi) with a 1.5 MPa (215 psi) proof rating, and speed runs 50-800 mm/s. Because only one air line is needed, plumbing stays simple and the valve count drops to a single 3/2 way unit for a one-way draw, retract, close or tension motion.
Construction suits damp and washdown-adjacent lines: a SUS304 stainless barrel, a hard-chrome (20 um) plated carbon-steel rod, riveted covers, a two-way lubricant-storing piston seal and a fixed anti-impact bumper pad at the stroke end. The fitted magnet (the S in the code) accepts CMSG, DMSG or EMSG switches for end-of-stroke signalling. As a computed guide, a realistic working pull of roughly 0.6 times the 0.5 MPa figure is about 80 N, which lifts or tensions a load of roughly 8 kg. If you need two-way powered travel or a stroke beyond the 150 mm spring-return limit of this bore, step up to the double-acting MG series.
Airtac MTG Stainless Steel Mini Cylinder MTG25X25S Technical Specifications
| Model | Airtac MTG Stainless Steel Mini Cylinder MTG25X25S |
|---|---|
| Series | MTG JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Fixed anti-impact bumper pads |
| Max standard stroke | Up to 150 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 | Pull force (spring return) |
|---|---|
| 0.5 MPa | 132.6 N |
| 0.7 MPa | 215.0 N |
Single-acting pull: the spring extends the rod; air retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
Model Code: Airtac MTG Stainless Steel Mini Cylinder MTG25X25S
| MTG | JIS round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×25 | 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 MTG Stainless Steel Mini Cylinder MTG25X25S Is Used
Retract a locking pin
Air pulls the 25 mm bore rod in to withdraw a pin or latch; if air is lost the spring pushes the rod back out to its extended rest position.
Tension a belt or web
The spring keeps the idler roller pushed out for constant take-up, while the 132.6 N pull at 0.5 MPa draws the tensioner back for belt or tape changes.
Close a small shutter or gate
One 3/2 valve and a single air line retract the gate on demand; the spring reopens it automatically, with the bumper pad softening both stroke ends.
Is the Airtac MTG Stainless Steel Mini Cylinder MTG25X25S the Right Cylinder?
Size the MTG by net pull, not bore alone. This 25 mm bore gives 132.6 N at 0.5 MPa and 215 N at 0.7 MPa; take about 0.6 of the 0.5 MPa figure (roughly 80 N, or an 8 kg load) as a safe working pull. Choose MTG20 if your pull demand is lighter, or MTG32/MTG40 for heavier draws. Remember the behaviour: the spring extends the rod and air retracts it, so the rest position is rod-out and the minimum working pressure is 0.2 MPa (28 psi). The spring return caps standard strokes at 150 mm for this bore; for longer travel or powered extension, use the double-acting MG. Mounting options are LB foot, FA flange, CB clevis and SDB pivot, plus I and Y rod knuckles; the fitted magnet allows CMSG/DMSG/EMSG switches. Thread is PT and the port is 1/8" on every MTG bore.
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 0.2 – 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 MTG Stainless Steel Mini Cylinder MTG25X25S FAQ
Net of the return spring, this 25 mm bore pulls 132.6 N at 0.5 MPa and 215 N at 0.7 MPa. The spring sets a minimum working pressure of 0.2 MPa (28 psi), with an operating range of 0.2-1.0 MPa (28-145 psi), a proof pressure of 1.5 MPa (215 psi), a temperature range of -20 to +70 C and a speed range of 50-800 mm/s. Air should be filtered to 40 um, and the port is 1/8" PT.
In the MTG the spring extends the rod and air retracts (pulls) it, so the cylinder fails to its rod-out position on air loss; the fixed bumper pad only softens the stroke end and never locks or holds a load. The MSG is the opposite single acting type (air pushes, spring retracts), and the MG is double acting with powered travel in both directions for longer strokes or two-way work. This S-coded model carries a magnet, so CMSG, DMSG or EMSG switches can signal rod position.
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