Airtac MTG Stainless Steel Mini Cylinder MTG40X150S
The AirTAC Airtac MTG Stainless Steel Mini Cylinder MTG40X150S is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke150 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM14×1.5
- CushionFixed anti-impact bumper pads
About the Airtac MTG Stainless Steel Mini Cylinder MTG40X150S
The AirTAC MTG40X150S is a single acting, spring-return PULL cylinder in the JIS round-body mini family: an internal spring holds the rod extended at rest, and compressed air retracts (pulls) it on the work stroke. With a 40 mm bore and 150 mm stroke, it delivers about 339 N of net pull at 0.5 MPa and 550 N at 0.7 MPa, figures already net of the spring. The 150 mm stroke is the maximum standard stroke for this bore, since the return spring caps available travel. Operating pressure is 0.2-1.0 MPa (28-145 psi) at 50-800 mm/s, with a 1/8" port and an M14x1.5 male rod thread on the 16 mm rod.
Construction suits damp and washdown surroundings: a SUS304 stainless barrel with a hard-chrome (20 um) carbon-steel rod, riveted covers, a two-way lubricant-storing piston seal and a fixed anti-impact bumper pad at each stroke end. Because the S code is fitted, CMSG, DMSG or EMSG magnetic switches can be clipped on for end-of-stroke signalling. As a practical sizing insight, apply about 0.6 of the pull force for continuous duty: roughly 203 N, or a safe vertical pull of about 20 kg at 0.5 MPa. If you need two-way powered travel or a longer stroke, step up to the double-acting MG series.
Airtac MTG Stainless Steel Mini Cylinder MTG40X150S Technical Specifications
| Model | Airtac MTG Stainless Steel Mini Cylinder MTG40X150S |
|---|---|
| Series | MTG JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/8" |
| Rod thread | M14×1.5 |
| 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 (Ø40mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 339.1 N |
| 0.7 MPa | 550.1 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 MTG40X150S
| MTG | JIS round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 MTG40X150S Is Used
Retract a locking pin
Air pulls the pin out of a fixture or die on command; if air is lost, the spring pushes the pin back to its extended, engaged rest position.
Tension a belt or chain
The spring keeps the idler pushed out to maintain belt tension, while the air stroke releases or re-tensions it on a single 1/8" air line.
Close a shutter or gate
Use the 339 N pull at 0.5 MPa to draw a slide, shutter or gate closed at the end of a packaging cycle, with the spring reopening it on air loss.
Is the Airtac MTG Stainless Steel Mini Cylinder MTG40X150S the Right Cylinder?
Choose the MTG40X150S when your motion is a one-way pull and 339 N (about 34 kgf) at 0.5 MPa is enough working force; it is the largest MTG bore, so step down to MTG32, MTG25 or MTG20 if you can accept less pull. Remember the direction of action: the spring extends the rod and air retracts it, so your load must be pulled, not pushed. The spring return sets a 0.2 MPa minimum working pressure and limits standard strokes to 150 mm; for longer travel or powered return, use the double-acting MG series instead. Mounting options are LB foot, FA flange, CB clevis and SDB pivot, plus I and Y rod knuckles. This S-coded model carries the magnet, so add a CMSG, DMSG or EMSG switch if you need position signalling. Threads: PT (blank), G or NPT.
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 MTG40X150S FAQ
Net of the return spring, it pulls 339.1 N at 0.5 MPa and 550.1 N at 0.7 MPa. Operating pressure is 0.2-1.0 MPa (28-145 psi) with a 1.5 MPa (215 psi) proof pressure, fluid is air filtered to 40 um, working temperature is -20 to +70 C, and speed range is 50-800 mm/s. The port is 1/8" on every MTG bore.
The internal spring extends the rod to its rest position; applying air retracts (pulls) it. On air loss the spring pushes the rod back out, so the cylinder fails to the extended state and does not hold a load; the fixed bumper pad only softens the stroke end. Because this is the S version, the magnet is fitted and CMSG, DMSG or EMSG switches can be mounted. It differs from the MSG (single acting, push) and the double-acting MG, which powers both directions.
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