Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X25-10
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X25-10 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 25mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 15–25mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke25 mm
- Adjustable15–25 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 MBLCJ20X25-10
The AirTAC MBLCJ20X25-10 is a compact double-acting aluminum mini cylinder featuring a rear adjustable stroke and an adjustable air cushion at both ends. You can trim up to 10 mm of travel at the rear, creating a usable end-position window of 15 to 25 mm. Driven through a G1/8 port, the Ø8 carbon-steel rod delivers 157 N of push force and 132 N of pull force at 0.5 MPa. This 25 mm stroke suits short indexing and compact ejection tasks in tight machine cells.
Unlike the base MBLJ which relies on a fixed rubber bumper, this SKU uses screw-tunable air cushions to decelerate the piston near each stroke end, absorbing impact for faster cycle rates while protecting the end covers. The riveted rolling-packed aluminum barrel and heterogeneous two-way grease-retaining piston seal keep the internal lubrication stable. Because this specific code lacks the -S suffix, it has no built-in magnet and cannot host a CMSG, DMSG, or EMSG position sensor.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X25-10 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X25-10 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 25 mm |
| Adjustable window | 15–25 mm (trim 10 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 MBLCJ20X25-10
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×25 | Nominal stroke length in mm. |
| -10 | 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 MBLCJ20X25-10 Is Used
PCB Router Ejector
Deploys 157 N of push force at 0.5 MPa to snap cut PCB panels from a router, using the 15-25 mm stroke window to time the ejection precisely without hitting the spindle.
Pharmaceutical Vial Reject
Uses the dual adjustable air cushions to decelerate a fast 25 mm stroke, flicking misaligned vials off a high-speed packaging conveyor without shattering the glass.
Thin Film Web Tracker
Sets a compact 15 mm end-position stop to nudge a delicate film web guide back into alignment, relying on the 132 N pull force to retract the 8 mm rod smoothly.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X25-10 the Right Cylinder?
If you need less force, step down to the 20 mm bore's smaller sibling, but note the 20 mm is already the smallest available frame here. For heavier pushing, step up to the 32 mm bore, which yields 402 N of push force at 0.5 MPa. Choose this MBLCJ over the MBLJ when your cycle speed demands tunable end-deceleration rather than a fixed bumper, or over the MBLC when you need to fine-tune the rear travel stop rather than using a fixed stroke.
Remember the rear adjuster is a travel stop, not a load lock; it sets the end position but does not hold the rod against drift, so use an external guide or lock for position holding. Mounting is limited to Basic, FA flange, or LB foot options—no SDB pivot or back-cover code is available. To match this exact replacement, specify: 20 mm bore, 25 mm stroke, 10 mm adjust code, G1/8 port, PT thread, and no magnet.
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 MBLCJ20X25-10 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 increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
The rear adjustment lets you mechanically trim the travel by up to 10 mm, setting a usable stroke window of 15 to 25 mm. The adjustable air cushion only controls end-of-stroke deceleration to prevent impact damage; neither feature locks or holds the load in place.
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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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