Tie Rod Hydraulic Cylinder Size Chart & Dimension Guide
This size chart covers standard NFPA tie rod hydraulic cylinder dimensions for common bore sizes, rod diameters, stroke lengths, and pressure ratings. Use this guide to select, replace, or cross-reference cylinders from brands like Parker, Bosch Rexroth, and Eaton.
Related guide: The Ultimate Guide to Tie Rod Hydraulic Cylinders →
Standard Bore Sizes and Pressure Ratings
| Bore Diameter (in) | Bore Diameter (mm) | Rod Diameter (in) | Max Pressure (PSI) | Max Pressure (Bar) |
|---|---|---|---|---|
| 1.5 | 38.1 | 0.625 | 2500 | 172 |
| 2.0 | 50.8 | 1.125 | 2500 | 172 |
| 2.5 | 63.5 | 1.375 | 2500 | 172 |
| 3.25 | 82.6 | 1.75 | 2000 | 138 |
| 4.0 | 101.6 | 2.0 | 2000 | 138 |
| 5.0 | 127.0 | 2.5 | 2000 | 138 |
| 6.0 | 152.4 | 3.0 | 1500 | 103 |
| 8.0 | 203.2 | 4.0 | 1500 | 103 |
Note: Higher pressure ratings may be available for heavy-duty series. Contact our engineering team for custom requirements.
Standard Stroke Lengths by Bore Size
| Bore (in) | Available Stroke Lengths (in) | ||||
|---|---|---|---|---|---|
| 1.5 – 2.5 | 4 | 6 | 8 | 10 | 12 |
| 3.25 – 4.0 | 6 | 8 | 12 | 16 | 20 |
| 5.0 – 6.0 | 8 | 12 | 18 | 24 | 30 |
| 8.0 | 12 | 18 | 24 | 30 | 36 |
Custom strokes available up to 120 inches depending on bore and mounting style.
NFPA Common Mounting Dimensions
The table below shows key mounting dimensions for standard NFMP tie rod cylinders (side lug mount). All dimensions are in inches.
| Bore (in) | Rod (in) | Port Size (NPT) | Lug Hole Dia | Lug Width |
|---|---|---|---|---|
| 2.0 | 1.125 | 1/2″ | 0.53 | 1.38 |
| 2.5 | 1.375 | 1/2″ | 0.53 | 1.69 |
| 3.25 | 1.75 | 3/4″ | 0.66 | 2.00 |
| 4.0 | 2.0 | 3/4″ | 0.66 | 2.25 |
| 5.0 | 2.5 | 1″ | 0.81 | 2.62 |
How to Use This Size Chart
- Select the required bore size based on force calculation (Force = PSI × piston area).
- Choose rod diameter — larger rods resist buckling better for longer strokes.
- Determine stroke length based on application movement requirements.
- Verify mounting style dimensions (flange, clevis, lug, or pivot).
- Confirm port sizes match your hydraulic hose fittings.
Tip: For applications with side loads, select a larger rod diameter or add a rod bushing.
Common Replacement Scenarios
| OEM Part Number | Compatible Bore | Stroke | Mount |
|---|---|---|---|
| Parker 2H/2A Series | 1.5″ – 8″ | Custom | Multiple |
| Bosch Rexroth CD70 | 25 – 200mm | Custom | ISO 6020/2 |
| Prince M-Series | 2″ – 5″ | 4″ – 30″ | Clevis / Cross tube |
Need a cross-reference? Send us your OEM model number →
FAQ – Size & Dimensions
Q: What is the smallest tie rod cylinder bore available?
A: Standard NFPA tie rod cylinders start at 1.5 inches (38 mm) bore. Smaller bores are typically welded or threaded-body cylinders.
Q: Can I get a non-standard stroke length?
A: Yes. Toleng Hydraulic offers custom strokes up to 120 inches. Minimum order quantities may apply.
Q: How do I measure an existing tie rod cylinder for replacement?
A: Measure bore (inside barrel diameter), rod diameter, stroke (distance between fully retracted and fully extended), and mounting centerline distances. See full measurement guide →
Request a Quote for Custom Sizes
Contact Toleng Hydraulic with your required bore, stroke, mounting, and pressure specifications. We offer competitive pricing for both standard and custom sizes.
Get a quote online → or call +86 139 5731 3900.
