Case Study

Mobile yard ramps: redesign for cost, margin and range development

Tom led the engineering delivery of a phased yard ramp redesign programme, reducing steel usage, improving product economics, and introducing new models to strengthen the overall range.

Phase 0

Materials handling

Range rationalisation

Cost and weight reduction

A 6 tonne type 10 yard ramp developed as part of the wider range rationalisation programme.

A 6 tonne type 10 yard ramp developed as part of the wider range rationalisation programme.

Situation

Between 2002 and 2005, steel prices more than doubled and showed no sign of easing. At the same time, lower-cost imported alternatives began appearing in the market, increasing price pressure and steadily eroding margin on fabricated steel products.

For Thorworld’s mobile yard ramps, this created a serious commercial challenge. If the range could not be re-engineered to a lower cost base, it would become increasingly difficult to justify UK manufacture while remaining competitive.

The real problem

The problem was to reset the product specification and cost structure so the range could remain UK-built, commercially viable, and still meet the safety and performance expectations the market relied on.

That meant stepping back from isolated design tweaks and treating the ramps as a product family: understanding what truly drove cost and weight, what could change without undermining function, and what needed to remain fixed to preserve acceptance criteria and customer confidence.

Constraints

  • Competitive cost pressure: material cost inflation and import competition demanded a step change in cost base, not marginal savings.

  • UK manufacturability: the range needed to remain buildable in-house using existing fabrication capability and realistic shop-floor processes.

  • Performance and safety: ramps had to preserve load capacity, stiffness, and operational robustness in real loading environments.

  • Substantiation requirements: designs had to be checked to EN 1398 and BS 5950, supported by CAE substantiation and physical type testing.

  • Range continuity: changes needed to improve the core type 6 and 7 products while also creating a coherent basis for later variants.

Client:

Thorworld Industries

Role:

Lead Design Engineer

Period:

2005–2009

Scope:

Range re-specification +
Product redesign +
New product variants

Acceptance basis:

EN 1398 / BS 5950 +
CAE substantiation +
Physical type testing

Key moves

Resetting the specification with stakeholders

  • Researched the market context and competitor landscape to clarify what competitive meant in practice: price points, buyer expectations, and perceived quality.
  • Converted that into an updated product specification for internal review, surfacing non-negotiables and areas where the legacy specification was over-constraining cost.

Baseline modelling and identifying cost/weight drivers

  • Built baseline models of the existing ramps and assessed how the current architecture performed.
  • Identified the dominant weight and cost drivers, including where steel was being spent for limited performance return, and created a ranked improvement opportunity list.

Developing costed concepts in CAD

  • Developed multiple alternative concepts and refinements in 3D CAD, rather than pushing a single redesign route.
  • Produced costed options so selection could be made on overall outcome, including material usage, fabrication effort, and product performance, rather than aesthetics or intuition.

Verification (CAE + calculations to BS 5950)

  • Tested concepts using CAE to compare load paths, stiffness, stress hotspots, and sensitivity to assumptions.
  • Backed this up with manual calculations to BS 5950 so the engineering remained traceable and tied to the acceptance basis.

DFMA with buyers and shop floor

  • Worked closely with buyers, welders, and machine operators to ensure ideas translated into buildable reality.
  • Iterated details to reduce fabrication hours and variability, including part rationalisation, joint detailing, tolerances, weld access, and handling/fixturing considerations.

Type testing and CE-marking documentation

  • Planned and oversaw physical type testing on prototypes to validate both performance and any remaining modelling assumptions.
  • Collated supporting technical documentation into a structured file to support CE marking requirements for the product range.

Selected snapshots

One of the earlier yard ramp designs at the start of the programme. The range had originally been developed with external structural engineering input, at a time when material cost pressure was less acute.

Rapid rises in steel prices, along with low-quality but cheap imports, created serious margin pressure across fabricated products, making targeted product redesign a commercial necessity.

Design development and physical type testing formed part of the optimisation work, helping validate lighter and more efficient ramp designs before release.

Phase 1 focused on structural optimisation to reduce steel usage by weight. Phase 2 explored additional cost-saving routes through functional cost analysis. Phase 3 introduced new designs based on previous learnings.

The broader ramp range developed through the programme, with products more clearly aligned to utilisation class whilst retaining the core functional purposes of the original range.

The work improved the overall quality and breadth of the ramp range, while also restoring more sustainable margins and helping retain UK manufacture in the face of cheaper imports.

Outcome

The programme first optimised the existing high-volume ramps (types 6 and 7), then delivered entirely new designs (types 8, 9 and 10) between 2007 and 2009. Across the refreshed range, weight — and therefore steel cost — was materially reduced while maintaining the functional performance and acceptance basis the product category depended on.

Practically, this enabled Thorworld to offer a broader set of ramp variants and capacities, reduce selling prices, restore margin to more sustainable levels, and increase throughput by making the ramps faster and more consistent to manufacture.

What this enabled

The work re-established a viable cost base for a flagship product family during a period when many fabricated-product businesses were being squeezed by material inflation and aggressive imports.

By preserving standards-led acceptance and real-world robustness while materially improving product economics, the ramp range remained commercially defensible through the subsequent downturn and provided a platform for continued product-line expansion rather than contraction.

Business perspective

The work was seen internally as highly valuable because it delivered substantial reductions in steel content and build effort during a period when all UK steel fabricators were suffering material and other cost pressures. It also provided a structured basis for change — combining specification reset, costed options, DFMA iteration, substantiation, and type testing — rather than relying on isolated redesign decisions.

Based on recollections from the time

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