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Service · Mechanical engineering

Mechanical engineering for the projects that have to leave the workshop.

Mechanical design worked from first principles, checked with FEA, and documented so the workshop can build straight from it. For industrial, mining and architectural clients across WA, to the Australian Standards, with one engineer on your job from start to finish.

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Positioning

Senger Engineering is a mechanical engineering consultancy, not a drafting service or render studio. The deliverable is engineering: load paths traced, members sized, connections verified, and outcomes documented in a form that survives independent review and the realities of fabrication.

Where a project requires geometry, drawings or visualisation, those follow naturally from the engineering. They are never a substitute for it.

Service capabilities

What mechanical engineering with Senger looks like.

The engagement is shaped around what the project actually needs, from concept-stage advice through to manufacture-ready packages and on-site support during fabrication.

01

Concept design & feasibility

Early-stage mechanical design when the brief is still forming. Rapid sizing of primary members, mechanism feasibility studies, comparison of design routes, and identification of the standards and constraints that will govern the detailed design phase.

  • First-principles load and capacity calculations
  • Concept sketches and preliminary 3D massing
  • Feasibility report with recommendations
  • Risk and constraint register
02

Detailed mechanical design

Full mechanical design of equipment, frames, skids, supports and structural assemblies. Member sizing, connection design, mechanism kinematics and tolerance stack-ups resolved to a level that is buildable, inspectable and serviceable in the field.

  • 3D modelling and assembly in SOLIDWORKS
  • Bolted and welded connection design to AS 4100 and AS/NZS 1554
  • Mechanism, kinematics and clearance analysis
  • Material selection, grade and finish specification
03

FEA & engineering analysis

Linear and non-linear finite element analysis where hand calculation is insufficient or where independent verification of a critical component is required. All studies include mesh refinement, convergence verification and clear traceability between the loads applied and the standards being checked against.

  • Static, modal and fatigue analysis in SOLIDWORKS Simulation
  • Mesh refinement and convergence reporting
  • Yield, ultimate and serviceability limit-state checks
  • Formal FEA report suitable for client and reviewer scrutiny
04

Manufacturing documentation

Issue-for-construction documentation packages produced from the engineering. General arrangement, fabrication and shop drawings issued in PDF and DWG, complete with bills of materials, weld schedules, bolt callouts and surface treatment notes for direct release to a registered fabricator.

  • GA, fabrication and shop drawings to AS 1100
  • Weld schedules referenced to AS/NZS 1554
  • Bolt and connection schedules to AS/NZS 1252
  • Bill of materials with grades, finishes and quantities
05

Manufacturing & fabrication coordination

Engagement does not end at drawing release. RFIs, shop-floor queries and fabrication-driven design adjustments are resolved alongside the fabricator and client, protecting the design intent and keeping the project moving.

  • Response to fabricator RFIs within one business day where possible
  • Minor design revisions and re-issued drawings
  • Coordination with fabricator on weld access and assembly sequence
  • As-built mark-ups and final issue where required
06

Engineering review & design audit

Independent review of existing designs, calculation packages or drawings, identifying gaps, errors, over-conservatism or compliance issues before they reach site.

  • Design audit against applicable Australian Standards
  • Calculation package review and verification
  • Drawing review for completeness and constructability
  • Clear, written findings with prioritised actions
Engineering workflow

A clear, stage-gated process, from brief to as-built.

  1. 01

    Brief intake & scope definition

    A written scope is agreed before any work begins: deliverables, governing standards, client specifications, interfaces with other trades, and acceptance criteria. The brief is reduced to first principles and any assumptions are explicitly listed.

  2. 02

    Concept & first-principles sizing

    Loads are calculated, load paths traced and critical components sized by hand or spreadsheet before geometry is committed. Material grades and connection types are selected against the appropriate Australian Standard and the concept is validated with the client.

  3. 03

    Detailed design & FEA verification

    3D modelling and detailing in SOLIDWORKS. Where required, FEA is performed in SOLIDWORKS Simulation for stress, deflection and fatigue verification. Mesh refinement studies and convergence are documented in a formal report.

  4. 04

    Documentation & review

    GA, fabrication and shop drawings produced to construction-ready quality. Internal QA review against the design report, calculations and the brief before drawings are issued to the client for review and sign-off.

  5. 05

    Issue for fabrication & manufacture support

    Drawings issued for construction. Fabricator RFIs, minor design adjustments and revisions resolved as the build progresses. Documentation tracked through to as-built where required.

Compliance · Australian Standards

Designed and documented to code.

All mechanical engineering work is referenced to the appropriate Australian Standards. The codes below are the principal references applied across mechanical, structural and welding scope, selected per project to suit the application and client specification.

AS 4100
Steel structures
Member capacity, connection design, stability of structural steel.
AS 3990
Mechanical equipment, Steelwork
Steelwork supporting mechanical and process equipment.
AS 4600
Cold-formed steel structures
Cold-rolled and light-gauge structural steel design.
AS/NZS 1170
Structural design actions
Permanent, imposed, wind and combination actions.
AS/NZS 1554
Structural steel welding
Welding processes, weld categories and inspection.
AS/NZS 5131
Structural steelwork, fabrication
Construction categories, tolerances and fabrication compliance.
AS/NZS 1252
High-strength steel bolts
Property class 8.8 bolts, nuts and washers.
AS 1657
Platforms, walkways & ladders
Fixed access platforms, stairs, walkways, guardrails.

Additional standards (NCC / BCA, AS 1428 access & mobility, AS 1418 cranes, AS 4024 machinery safety, AS 1210 pressure vessels, project-specific client specifications) consulted as required.

Industries served

Engineering for industries that don't forgive errors.

Senger Engineering operates at the intersection of mining, industrial and architectural sectors, environments where a missed weld callout, an under-sized member or an ambiguous drawing has real, immediate consequences on site.

  • 01 Mining & mineral processing infrastructure
  • 02 Materials handling, conveyors & bulk handling
  • 03 Custom industrial machinery & production equipment
  • 04 Industrial sheds, portal frames & warehousing
  • 05 Architectural & tensile structures
  • 06 Trailers, mobile equipment & transportable assets
FAQ · Common questions

Questions clients ask before engagement.

What types of projects are typical?

Mechanical engineering scope across mining infrastructure, custom industrial equipment, structural steel frames supporting process plant, modular and transportable assets, conveyors and materials handling, and architectural / tensile structures. The studio works equally well on a single component requiring FEA verification and on a full multi-discipline mechanical package.

How long does a typical project take?

Indicative timeline for a full mechanical package, concept through to issue-for-construction drawings, is four to six weeks for a moderate scope. Smaller engagements (single component FEA, an isolated calculation package, a discrete drawing scope) can be completed within one to two weeks. The schedule is agreed in writing at engagement and adjusted to suit project complexity and input availability.

What software do you work in?

SOLIDWORKS for 3D modelling and detailing. SOLIDWORKS Simulation for linear and non-linear FEA, modal and fatigue analysis. AutoCAD for 2D documentation. FEM Tools for tensile and form-finding analysis. Native files (SLDPRT, SLDASM, DWG) provided where requested, alongside neutral exports (STEP, IGES, PDF) for downstream and archival use.

How do you charge?

Two fee models are offered. Time-and-materials engagement uses published hourly rates against an agreed estimate, with hours capped to within 10% of the original estimate without prior approval. For well-defined scopes, a fixed lump-sum is offered, including the agreed deliverables, one revision round and manufacture support during build. All amounts in Australian Dollars, GST registered.

Do you work with our existing fabricator?

Yes. Drawings are issued at a quality level the fabricator expects: hole patterns, weld throat thickness, surface treatment notes and AS/NZS 1252 bolt callouts complete on first issue. Where the fabricator is engaged early, design adjustments to suit their tooling, profile availability or assembly preferences are accommodated within the design phase, reducing rework once drawings are issued for construction.

Can you take over a project mid-way?

Yes, provided the existing inputs (drawings, calculations, design intent) can be reviewed and the design assumptions made by the previous engineer can be verified or appropriately documented. A short scoping engagement is typically run first to confirm the inherited package is fit for continuation before committing to the full design.

Start the conversation

Ready to engineer it properly?

Brief, sketch, drawing pack or a full specification, send what you have. Initial scoping calls are free, and a written proposal is typically returned within forty-eight hours.