Tube and bore condition
- Cold-drawn, hot-rolled or pre-machined tube
- Material, hardness and heat treatment
- OD, wall thickness, straightness and clamping length
- Starting bore, finished bore and allowance variation
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Cylinder-tube bore sizing and surface finishing
Skiving & Roller Burnishing Machines Selected by Starting Bore, Allowance and Wall Condition
A suitable SRB route starts with the tube condition, not the final diameter alone. Provide stock type, material, hardness, wall, starting bore, allowance, depth, target surface and production requirement.
Is SRB Suitable for the Workpiece?
Skiving and roller burnishing is evaluated for efficient sizing and surface finishing of compatible cylindrical bores from a controlled starting condition.
Good starting fit
- Through cylindrical bores
- Hydraulic-cylinder and compatible precision-tube applications
- Stable allowance around the bore
- Material and wall condition compatible with cutting and burnishing
- Repeat production with a defined takt target
Review another or combined route when
- The bore is blind, stepped or interrupted
- Incoming bend or geometry error exceeds corrective allowance
- Wall thickness is insufficient or inconsistent
- Material condition is unsuitable for burnishing
- Geometry or texture is better controlled by honing
Inputs That Change the SRB Tool and Machine Configuration
Process and output
- Depth, exit and tool-overrun condition
- Tolerance, roundness, cylindricity and texture
- Coolant, filtration, chips and cleanliness
- Quantity, takt, loading, gauging and automation
Reference Configurations for Engineering Review
| Reference configuration | Bore range | Reference depth | Current website reference |
|---|---|---|---|
| TZK32A/1 × 4 m | Ø40–320 mm | 300–4,000 mm | IT7–IT9 and Ra 0.2–0.4 μm after SRB are page references. |
| TGK2120 × 6000 | Ø40–200 mm | Up to 6,000 mm | The page lists finishing, rolling and roundness references. |
Reference performance depends on stock type, material, hardness, wall, allowance distribution, tool, coolant and inspection method.
From Incoming Tube to an SRB Proposal
1. Verify the tube
Stock type, hardness, wall, straightness and starting bore.
2. Define allowance
Nominal stock and variation along the length.
3. Review the tool route
Skiving, burnishing, coolant, filtration and exit.
4. Agree the result
Measurement locations, geometry, surface and sample.
SRB or Honing? The Starting Condition Decides
SRB is reviewed for efficient sizing and burnishing when the incoming bore and allowance are compatible. Honing is reviewed when controlled geometry correction or a specified final texture is the primary requirement. Some parts require boring before either route.
Ask for a Process ComparisonSRB Engineering FAQ
Can a cold-drawn tube go directly to SRB?
Only after material, straightness, wall, starting bore and allowance variation are reviewed.
Can a hot-rolled tube be processed in one stage?
It may require preliminary boring or another preparation step. The starting condition must be measured.
Is a specific Ra guaranteed in one pass?
No. Website values are references. Guaranteed results require signed project conditions.
What drawing data is most important?
Show the bore, entry and exit, OD, wall, clamping area, starting and finished sizes, quality requirements and quantity.
Engineering review
Review Your Cylinder-Tube Application
Send the tube specification, wall, starting and finished bores, allowance, depth, surface requirement, takt and drawing.
