Restoring reliability in a nip roller lamination system (Penthouse Carpets)
Penthouse Carpets commissioned Barair to investigate persistent alignment and lamination quality issues on a 5m nip-roller system used to compress carpet and backing fabric prior to latex curing. The objective was to restore repeatable operation and provide a clear, implementable improvement plan. This case study outlines the critical role of nip roller lamination in ensuring high-quality carpet production.
The problem
The nip-roller system was frequently going out of alignment, causing uneven lamination (and in some cases no lamination), with direct impact on production stability and product quality. The system was intended to be self-adjusting and maintain even pressure across the working width.
Constraints and inputs
- Wide-format process equipment (up to ~5 m working width)
- Limited access to full OEM design schematics initially
- Existing load-cell system providing an averaged output signal
- Requirement to minimise disruption to production (works planned around operating days)
Work performed
- On-site assessment and review of the nip-roller arrangement and failure modes
- Review of load-cell signal architecture and options to obtain individual end readings rather than an averaged value
- Development of a staged improvement concept, including:
- Additional independent feedback signals to the PLC
- Additional distance sensing to detect misalignment / “crabbing”
- Control panel modification concept (additional inverter drives, I/O capacity checks)
- Protection and operational improvements (e.g., clearer fault indication)
Deliverables
- Evidence-led findings and a structured improvement plan
- Practical control-panel modification concept for contractor implementation
- Installation planning approach designed to avoid production disruption
- Ongoing coordination with specialist suppliers / automation partner
Key deliverables
Engineering findings summary with prioritised actions
Modification options with build/installation considerations
Practical drawings / notes to support manufacture and fit-up
Commissioning and adjustment guidance to reduce repeat failures
Close-out summary suitable for internal sign-off
Adrian Lowes BEng(hons) CEng MIMechE ASME
Adrian Lowes is a Chartered Mechanical Engineer and the founder of Barair Systems Limited, with over two decades of experience delivering innovative engineering solutions.
A graduate of the University of Bradford, he has worked on projects from automated vision systems for the automotive industry to oil and gas research with Cranfield University. He has developed products for brands including Microsoft, ICI, Toyota, and Florette. His expertise spans machinery design, finite element analysis, CE marking, and industrial accident investigation.
A lifelong musician, Adrian has directed Skipton Brass and Brass Ten, and served on the Alumni Committee of the National Youth Brass Band of Great Britain. Based in West Yorkshire, he combines technical precision with creative problem-solving in every project.
Call to Action
If you have production equipment suffering from drift, inconsistent quality, or recurring mechanical adjustment issues, request a design review. We’ll define the real constraints and deliver a practical modification route with clear documentation.