World‑first automated bend end calibration for perfect circularity
Today’s industry faces increasingly demanding pipeline projects, often involving hundreds of bends. Despite skilled teams and strict procedures, ovality at bend ends still causes fitting errors, rework, time loss and safety risks during onsite welding; impacting deadlines, budgets and operational reliability.
This is exactly where the Impressor X Expressor makes a difference: the world’s first automated bent pipe end calibration system delivering perfect circularity every time.
Automated system for perfect bend ends
The Impressor X Expressor is a two‑step automated calibration system correcting diameter deviations (outside‑in) and reducing ovality (inside‑out) at bent pipe ends. Through 360° laser precision, it achieves an internal diameter tolerance of ±1.5 mm, enabling efficient fit‑up, improved safety and total process traceability. This world‑first innovation optimises bend end calibration for any demanding pipeline project.
How does it work?
The Impressor first applies pressure to the outside of a bent pipe end, to reduce the diameter to the desired dimension.
Next, the Expressor applies pressure from the inside out, to reduce the ovality of the bend end within tight tolerances. 360° laser technology measures in realtime the effect of the pressure on the diameter and ovality of the bent pipe end to steer the process.
This Impressor X Expressor calibration of bend ends can now deliver an inner diameter (ID) tolerance of just +- 1,5 mm (virtually nothing, that’s why we talk about ‘the perfect circle’). The calibration process is automatically documented, offering total traceability.
For pipeline contractors needing precision
For companies that require weld‑ready bend ends with high accuracy, consistent quality and reduced on‑site delays through automated bend ends calibration.
- LNG, gas
- Oil, petrochemical
- Nuclear, powerplants
- Nutrition
- Pharmaceutical
Precision and reliability you won’t find elsewhere
Frequently asked questions about
Impressor X Expressor
Do you have questions about our Impressor X Expressor & related services? We're here to make everything clear and easy to understand.
Can’t find the answer you’re looking for?
It’s the process of restoring perfect circularity at the ends of bent pipes to ensure efficient, safe welding.
Only Equans fully automates the two‑step process with 360° laser precision and complete traceability.
Mechanical forces during bending cause deformation and diameter variation.
It delivers ±1.5 mm internal diameter tolerance.
Yes, perfect circularity enables faster fit‑up and fewer adjustments.
Each calibration cycle is digitally logged for QA/QC.
Diameters from 277 mm to 1330 mm with wall thickness up to 50 mm.
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