Airtac MGC Stainless Steel Mini Cylinder MGC20X450
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC20X450 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 MGC20X450
The AirTAC MGC20X450 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-style MG, the cushion needle on each cover can be adjusted to decelerate the piston smoothly near end of travel, so this small-bore 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, rising to 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with covers and stainless block riveted and rolled onto it, plus a hard-chrome plated 20 um carbon-steel rod (8 mm diameter, male thread M8x1.25) and a two-way piston seal that also stores lubricant. The air supply should be filtered to 40 um, operating pressure spans 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), and the working temperature range is -20 to +70 C with speeds of 30-800 mm/s. Note that the 450 mm stroke sits just under the 500 mm maximum standard stroke for bore 20. The cushion only decelerates the stroke end; it is not a lock or brake, 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 MGC20X450 Technical Specifications
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC20X450 |
|---|---|
| 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 MGC20X450
| 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 MGC20X450 Is Used
Light conveyor gate actuator
The adjustable air cushion absorbs the stop impact of a diverting or gating plate cycling at speed on a packaging line, while 157 N push at 0.5 MPa easily moves small product dividers.
Carton push-off station
A 450 mm stroke clears a full carton width from a conveyor, and the variable cushion lets operators tune deceleration so boxes are set down gently rather than slammed.
Small test and lift fixture
With a safe vertical working load of about 9 kg (roughly 0.6 of the 157 N push force), the MGC20X450 suits light lifting or pressing jigs; add a pilot check valve if the load must hold on air loss.
Is the Airtac MGC Stainless Steel Mini Cylinder MGC20X450 the Right Cylinder?
At 20 mm bore this is the smallest MGC available, so size up if you need more force: the 25 mm bore pushes 245.3 N at 0.5 MPa and the 32 mm bore reaches 402.2 N, while the 63 mm bore tops the range at 1557.9 N. If your application runs slowly with light loads and no cushion is needed, the plain bumper-type MG in 20-40 mm bores is the no-cushion alternative within the same JIS family. The variable air cushion is the reason to choose MGC: adjust the needle valves to soften end-of-stroke impact when running near the 800 mm/s speed limit. Ports on this bore are M5x0.8 with PT thread; mounting options are FA flange or LB foot, with I and Y rod knuckles for the rod side. Order the -S magnet option if you want position sensing with CMSG, DMSG or EMSG switches; without it no sensor can be mounted. With a 450 mm stroke the slender 8 mm rod is exposed to side loads, so guide the load externally or add a knuckle to keep the rod straight.
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 MGC20X450 FAQ
At 0.5 MPa it pushes with 157 N and pulls with 131.9 N; at 0.7 MPa the figures are 219.8 N push and 184.7 N pull. The theoretical maximum at 1.0 MPa is 32 kgf. A practical rule of thumb is to size the load at about 0.6 of the push force, which gives a safe vertical lift of roughly 9 kg.
The cushion is an adjustable air chamber at each stroke end: turning the needle valve throttles the exhaust to decelerate the piston smoothly, protecting the covers at higher speeds. It only decelerates the stroke end and is not a lock, brake or position holder. If the load must stay in place on air loss, fit an external rod lock or pilot check valve. The SUS304 stainless barrel and hard-chrome rod suit the -20 to +70 C, 0.15-1.0 MPa (22-145 psi) operating envelope.
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