Airtac MGC Stainless Steel Mini Cylinder MGC20X450S
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC20X450S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 450mm stroke, M5×0.8 air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke450 mm
- Port sizeM5×0.8
- Acting typeDouble acting + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MGC Stainless Steel Mini Cylinder MGC20X450S
The AirTAC MGC20X450S is a double acting, JIS-standard round-body mini cylinder with a 20 mm bore and a 450 mm stroke, fitted with a variable air cushion at both stroke ends. Unlike the bumper-type MG, the cushion needles let you dial in smooth deceleration near end of travel, so this cylinder tolerates higher piston speeds and heavier moving loads without hammering the covers. At 0.5 MPa it delivers 157 N push and 131.9 N pull; at 0.7 MPa that rises to 219.8 N push and 184.7 N pull, with a theoretical maximum of 32 kgf at 1.0 MPa. A practical rule of thumb is to size the working load at about 0.6 of the push force, which gives a safe horizontal load of roughly 9.6 kg for this model.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with covers and stainless block riveted and rolled into place, plus a hard-chrome plated 20 um carbon-steel rod and a two-way piston seal that also stores lubricant. It is not a tie-rod or extruded-profile design. The S code means a magnet is built into the piston, so CMSG, DMSG or EMSG switches can be mounted for position feedback. Operating pressure is 0.15 to 1.0 MPa (22 to 145 psi), proof pressure 1.5 MPa (215 psi), temperature range -20 to +70 C, and speed range 30 to 800 mm/s on air filtered to 40 um. Note that the air cushion only decelerates the stroke end; it is not a lock, so use an external rod lock or pilot check valve if the load must be held on air loss.
Airtac MGC Stainless Steel Mini Cylinder MGC20X450S Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC20X450S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 450 mm |
| Acting type | Double acting + cushion |
| Port size | M5×0.8 |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MGC20X450S
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×450 | 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 MGC20X450S Is Used
High-speed ejector on small assembly stations
The variable air cushion absorbs the kinetic energy of a fast-travelling 20 mm bore piston, letting the MGC20X450S cycle at the upper end of its 30 to 800 mm/s range without impact damage to the covers.
Push-off and divert modules on conveyor lines
With 157 N push at 0.5 MPa (about 16 kgf, sized to roughly 9.6 kg safe working load) and a 450 mm reach, this cylinder pushes small cartons or bins off a transfer line with a smooth, cushioned stop.
Position-monitored slide or gate actuation
The built-in magnet allows CMSG, DMSG or EMSG reed switches along the 450 mm stroke, giving end-of-travel or intermediate position feedback on gates, chutes and indexing fixtures.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC20X450S the Right Cylinder?
At 20 mm bore this is the smallest MGC available, so there is no smaller cushioned option in the family; if you need more force, step up to the 25 mm bore for 245.3 N push at 0.5 MPa. If your application does not need end-of-stroke deceleration, the plain bumper-type MG in the same 20 mm bore is the lower-cost alternative for bores 20 to 40. The 450 mm stroke sits within the 500 mm maximum standard stroke for this bore, so no made-to-order surcharge applies (non-standard strokes up to 800 mm are available on request). Mounting is by FA flange or LB foot, with I and Y rod knuckles as rod-end accessories, and the fitted magnet supports CMSG, DMSG or EMSG sensing. With a long 450 mm stroke on an 8 mm rod, avoid side loads on the rod and use guidance external to the cylinder for accurate, low-friction travel.
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 MGC20X450S FAQ
At 0.5 MPa the 20 mm bore gives 157 N push and 131.9 N pull; at 0.7 MPa it gives 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa. For sizing, keep the working load at about 0.6 of the 0.5 MPa push force, roughly 9.6 kg.
Adjustable cushion needles at both stroke ends throttle the exhaust air to decelerate the piston smoothly near end of travel, which suits higher speeds and heavier moving loads than the bumper-type MG. The cushion only decelerates; it is not a lock or brake, and the cylinder will not hold position on air loss, so add an external rod lock or pilot check valve for a held load.
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