Airtac MTG Stainless Steel Mini Cylinder MTG20X50
The AirTAC Airtac MTG Stainless Steel Mini Cylinder MTG20X50 is a genuine single acting, pull (spring return) JIS-standard round-body mini air cylinder with a Ø20mm bore and 50mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke50 mm
- Port size1/8"
- Acting typeSingle acting, pull (spring return)
- Rod threadM8×1.25
- 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 MTG20X50
The AirTAC MTG20X50 is a single acting, pull-type JIS round-body mini cylinder with a 20 mm bore and 50 mm stroke: an internal spring holds the rod extended at rest, and compressed air retracts (pulls) the rod on the work stroke. Because air acts on only one side of the piston, a single 1/8" port and one air line are all that is needed, which simplifies plumbing on compact draw, retract and close motions. Net pull output, already after the spring, is 84.8 N at 0.5 MPa and 137.5 N at 0.7 MPa, with a minimum working pressure of 0.2 MPa and a speed range of 50-800 mm/s.
Construction follows the JIS mini-cylinder footprint with a riveted SUS304 stainless barrel and a hard-chrome plated (20 um) carbon-steel rod, so the MTG20X50 stands up well to damp and washdown environments. A fixed anti-impact bumper pad softens the stroke ends, and the two-way lubricant-storing piston seal extends service life. The spring-return design caps the standard stroke at 150 mm for this bore; for longer travel or two-way powered motion, step up to the double-acting MG series. As a practical sizing guide, treat about 0.6 of the pull force (roughly 50 N, or a 5 kg vertical load) as a safe continuous working figure.
Airtac MTG Stainless Steel Mini Cylinder MTG20X50 Technical Specifications
| Model | Airtac MTG Stainless Steel Mini Cylinder MTG20X50 |
|---|---|
| Series | MTG JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 mm |
| Acting type | Single acting, pull (spring return) |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 84.8 N |
| 0.7 MPa | 137.5 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 MTG20X50
| MTG | JIS round-body mini cylinder (single-acting pull, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 MTG20X50 Is Used
Retracting a locating pin
The spring keeps the pin extended for positioning, and the 84.8 N pull at 0.5 MPa retracts it on demand with a single air line and no return plumbing.
Drawing a light web or tape
Spring tension holds the take-up arm out while the cylinder pulls the arm in to maintain gentle tension on thin webs, labels or film in small packaging lines.
Closing a small shutter or gate
Air pulls a slide gate or shutter closed on each cycle; if air is lost, the spring reopens it to a defined extended rest position for a fail-safe default state.
Is the Airtac MTG Stainless Steel Mini Cylinder MTG20X50 the Right Cylinder?
Choose the MTG20X50 when your motion is a one-way pull of about 85 N or less at 0.5 MPa and a 50 mm stroke fits. It is the smallest MTG bore: if you need more pull, the MTG25 gives about 133 N, the MTG32 about 225 N, and the MTG40 about 339 N at 0.5 MPa. Remember the direction of operation: the spring extends the rod and air retracts it, so on air loss the rod returns to its extended rest position. The spring also sets a 0.2 MPa (29 psi) minimum working pressure and limits the standard stroke to 150 mm; for two-way travel or longer strokes use the double-acting MG series. Mounting options are LB foot, FA flange, CB clevis and SDB pivot, plus I and Y rod knuckles. This SKU has no magnet, so no position sensor can be fitted; order the -S version to enable CMSG, DMSG or EMSG switches. Port thread is PT (G and NPT available on request).
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 MTG20X50 FAQ
Net pull output, already after the spring, is 84.8 N at 0.5 MPa and 137.5 N at 0.7 MPa. Because the spring opposes the air side, the minimum working pressure is 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), an operating temperature of -20 to +70 C, and a speed range of 50-800 mm/s on air filtered to 40 um.
The internal spring pushes the rod out to its extended rest position; applying air retracts (pulls) the rod, so on air loss the rod extends again rather than holding a load. The fixed bumper pad only softens the stroke ends and is not a lock or brake. This differs from the MSG, which is a single-acting push type, and from the double-acting MG, which powers both directions. This SKU has no magnet, so no sensor can be mounted; order the -S option to enable CMSG, DMSG or EMSG switches.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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