Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-20
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-20 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 225mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 205–225mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke225 mm
- Adjustable205–225 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable air cushion (both ends)
- 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 MBLCJ Adjustable Mini Cylinder MBLCJ20X225-20
The AirTAC MBLCJ20X225-20 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. You can trim up to 20 mm of travel at the rear, giving an actual usable stroke window of 205 to 225 mm. Driven by an 8 mm rod through a G1/8 port, it generates 157 N of push force and 132 N of pull force at 0.5 MPa. This 225 mm stroke length is well-suited for traversing small machine frames where a fixed bumper would bounce the payload.
The screw-tunable end cushions allow you to dial in deceleration for faster moves, protecting the end covers from impact. The riveted rolling-packed barrel and grease-retaining piston seal keep contamination out, while the 20 μm hard-chrome plating on the carbon-steel rod resists scuffing. Note that this specific SKU lacks a built-in magnet, so it cannot accept a CMSG, DMSG, or EMSG position sensor. The rear stopper sets your travel end point; it is a physical stop, not a lock that holds the load in place.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-20 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 225 mm |
| Adjustable window | 205–225 mm (trim 20 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-20
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×225 | Nominal stroke length in mm. |
| -20 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-20 Is Used
PCB Edge Routing
Traverses a 205-225 mm window to move printed circuit boards into a routing spindle, using the tunable cushion to stop the 157 N push force without shaking the fragile panel.
Label Applicator
Adjusts the rear stopper to dial the exact peel stroke for varying label widths, while the end cushion decelerates the 132 N pull to prevent web tearing.
Small Part Ejector
Kicks lightweight plastic caps out of an injection mold using its 225 mm reach, relying on the hard-chrome rod and riveted barrel for millions of compact cycles.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-20 the Right Cylinder?
If you need less force, stepping down to the 12 mm bore class drops the push force to about 79 N at 0.5 MPa, whereas stepping up to the 25 mm bore raises it to 245 N. Choose this MBLCJ over the MBLJ when your payload needs smooth deceleration rather than a jarring fixed rubber bumper stop, or over the MBLC if your machine timing requires tweaking the end position within that 205-225 mm window. Remember that neither the rear travel adjuster nor the air cushion acts as a load-holding brake; the rod will drift without live air pressure, so use an external locking device if the payload must be held. Mounting is limited to Basic, FA flange, or LB foot styles, as this series omits the SDB pivot and back-cover options. To replace this cylinder exactly, match the 20 mm bore, 225 mm stroke, 20 mm adjust code, G1/8 port, PT thread, and confirm no magnet is required. Because the stroke is 225 mm on an 8 mm rod, you should guide the load externally to prevent side-load bending.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-20 FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push force is 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
No. The rear adjuster is a travel stop, not a lock, and the air cushion only decelerates; neither holds the load without live air. Also, because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG sensors.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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