Fully Custom Engineered Carts
Ground-up cart design and fabrication for applications that catalog products cannot meet — non-standard load paths, complex interface geometry, multi-axis positioning, hybrid material frames, and one-off prototype builds. Every fully custom cart project is delivered with a complete engineering documentation package including drawings, BOM, and load calculations.
Why Choose Modular Solutions for Fully Custom Engineered Carts?
When the application doesn't fit a catalog product, the cart needs to be engineered from requirements — not assembled from standard parts and adjusted until it approximately works.
Engineering from Your Requirements
Fully custom cart projects begin with a structured requirements review — load description, interface geometry, operating environment, and documentation requirements. Every design decision flows from your requirements document, not from what happens to be in a catalog. The result is a cart that meets your application exactly rather than one that approximately fits.
Non-Standard Load Paths and Geometry
Applications with asymmetric loads, offset CoG, concentrated point loads, or irregular deck geometry are designed with the structural analysis needed to confirm that the frame handles the actual load path — not a generalized load assumption. Profile size, cross-member spacing, and bracket design are calculated for the specific loads in your application.
Complex Interface Provisions
Custom carts with machine interfaces, fixture mating surfaces, conveyor integration, precision locating features, and multi-point coupling geometries are designed with the interface tolerances required for reliable operation. Interface features are dimensioned on the drawing so your team and the interfacing equipment manufacturer can verify fit before fabrication.
Hybrid Material Frames
For applications requiring load capacity, dimensional accuracy, or interface geometry beyond what T-slot aluminum alone can provide, hybrid frames combine T-slot aluminum profiles with custom-fabricated steel weldments, cast inserts, and precision-machined components. The hybrid approach delivers the specific material properties required for each section of the cart frame.
Multi-Axis Positioning Features
Carts that need to position parts or fixtures at specific heights, angles, or orientations at workstations incorporate scissor lift decks, tilt platforms, rotary tables, and linear slides as integrated mechanical features. Positioning mechanisms are selected for the required accuracy, load, and cycle life in the production environment.
Full Engineering Documentation
Every fully custom cart project is delivered with a complete drawing package, BOM, and load calculations. Documentation is formatted for your process documentation system, quality management system, or regulatory submission. Material certifications and traceability documentation are available for regulated applications.
Key Features & Benefits
Engineering capabilities applied to fully custom cart projects at Modular Solutions.
3D CAD Design and Drawing Package
All custom cart projects are modeled in 3D CAD before fabrication. The 3D model enables interference checking with your equipment and facility, and the full dimensional drawing is generated from the model for accuracy. Drawings are provided in standard formats (PDF, DXF, STEP) for customer review and records retention.
Load Calculation and Structural Review
Structural adequacy of the custom cart frame is reviewed against the specified load before fabrication. Load calculations cover beam bending in the deck members, frame base deflection under maximum load, coupling force at interface provisions, and caster load distribution. Calculations are documented and available for inclusion in your engineering records.
One-Off and Short-Run Fabrication
There is no minimum order quantity for fully custom cart projects. Single prototype builds allow physical validation before committing to production quantities. The prototype design and drawing are retained for production reorder without re-engineering cost, and repeat orders are released directly from the original drawing.
Precision Locating and Fixture Interface
Custom carts requiring precision part or fixture location use machined datum features, tooling ball provisions, kinematic mount interfaces, and precision-machined insert pockets fabricated to the tolerance required for the mating fixture or part. Location accuracy requirements are specified in the design brief and confirmed in the dimensional drawing before fabrication.
Material Selection for Regulated Environments
For food, pharmaceutical, medical device, and chemical processing applications, material selection for the cart frame, deck surface, hardware, and casters is reviewed against the regulatory requirements and environmental conditions of the deployment. FDA-listed materials, stainless steel hardware, and certified deck surfaces are available for regulated applications.
Post-Delivery Modification and Expansion
T-slot aluminum custom cart frames can be modified after delivery by adding profiles, brackets, deck extensions, and accessories without replacing the base frame. Post-delivery modifications are supported with updated drawings to maintain the documentation record. This is a significant advantage over welded steel carts, which require cutting and re-welding for structural modifications.
Common Applications
Fully custom engineered cart projects typically involve unusual load geometries, precision interface requirements, or applications where no catalog product exists.
- Large Sub-Assembly Delivery Carts - Ground-up carts designed for oversized sub-assemblies — engines, transmissions, battery packs, or large machined housings — that do not fit standard cart platforms and require specific deck geometry and load distribution for damage-free transport.
- Precision Fixture Transport - Carts with kinematic mount pockets and precision locating features designed to transport machining fixtures, inspection fixtures, and assembly fixtures without disturbing the fixture's datum reference between load and unload operations.
- Prototype and NPI Production Support - One-off and short-run carts supporting new product introduction builds where the production material handling solution is not yet finalized and a custom prototype cart is needed to support the build plan.
- Machine Infeed and Outfeed Staging - Carts designed to stage parts at the precise height and orientation required for machine infeed — with positioning stops, part support cradles, and interface geometry matched to the machine's loading envelope.
- Multi-Level Assembly Carts - Complex multi-tier carts for assembly operations where multiple part types must be staged at different heights and angles simultaneously, with ergonomic access to all positions from the assembly station side.
- Specialized Process Carts for Regulated Industries - Custom carts for medical device, pharmaceutical, and food processing operations with full material documentation, traceability records, and regulatory compliance provisions — built to GMP material handling cart standards.
Specifications & Configurations
Capabilities for fully custom cart projects. All parameters are application-specific — dimensions, materials, and interface geometry are established during the design phase.
| Specification | Detail |
|---|---|
| Frame Materials | T-slot aluminum (45/90 Series), steel weldments, stainless steel; hybrid available |
| Deck Materials | Aluminum sheet, steel, stainless, HDPE, foam, custom fixture surfaces |
| Load Capacity | Application-specific; structural review included for loads above 500 lb |
| Positioning Options | Scissor lift, tilt deck, rotary table, linear slide; manual or powered actuation |
| Interface Provisions | Precision locating, fixture datum features, kinematic mounts, coupling inserts |
| Documentation | 3D model, dimensional drawing, BOM, load calculations, material certifications |
| Minimum Quantity | Single unit (no minimum order quantity) |
| Lead Time | 4 to 10 weeks from approved design; complexity-dependent |
Frequently Asked Questions
Common questions about fully custom engineered carts from Modular Solutions.
What makes a cart application "fully custom" versus a configurable standard product?
A cart application requires ground-up custom engineering when the load path, geometry, interface, or operating requirements fall outside what standard T-slot catalog configurations can meet — for example, non-rectangular footprints, multi-axis positioning requirements, hybrid material frames combining aluminum T-slot with steel weldments, unusual coupling geometry for specialized equipment interfaces, one-off prototype builds where no catalog product exists, or applications where regulatory documentation (load calculations, material certifications, material traceability) is required for the product delivered on the cart. Standard configurable T-slot carts cover the majority of industrial cart applications. Fully custom engineering is used when the specific requirements cannot be met within the catalog framework.
How does the custom cart engineering process work at Modular Solutions?
The custom cart engineering process begins with a requirements review — your team provides the load description, interface requirements, operating environment, and any regulatory or documentation requirements. Modular Solutions prepares a design brief confirming the design parameters and scope, followed by a 3D design and dimensional drawing for your review. After drawing approval, fabrication is released. Delivery includes the fabricated cart with the full drawing package, BOM, and any required calculations or documentation. The process is collaborative — we review drawings with your team and incorporate feedback before fabrication release.
Can Modular Solutions design carts with non-rectangular or irregular footprints?
Yes. T-slot aluminum profiles can be cut to non-standard lengths and assembled at custom angles using specialized T-slot corner connectors and custom brackets. For extreme non-rectangular geometries — such as angled frames for machine infeed interfaces or L-shaped carts for corner-fit applications — a hybrid design combining T-slot profiles with custom-fabricated steel brackets provides the required geometry while retaining the T-slot modular attachment system for deck components and accessories.
Are one-off prototype carts available, or is there a minimum order quantity?
Modular Solutions builds single-unit prototype carts. There is no minimum order quantity for custom cart projects. A single prototype is often the starting point for a larger production order — prototype review allows physical fit check, load test, and operator ergonomic validation before committing to production quantities. The prototype drawing is retained and used directly for production reorder without re-engineering cost.
What documentation is provided with a fully custom engineered cart?
Fully custom engineered carts from Modular Solutions are delivered with a dimensional drawing package covering all cart dimensions, profile sizes, hardware specification, and assembly details. Load calculations confirming structural adequacy are available on request and are included by default for carts carrying loads above 500 lb or used in regulated applications. A bill of materials, caster specification, and weight data are standard inclusions. Engineering documentation is formatted for inclusion in your process documentation, quality management system, or regulatory submission as required.
Ready to Engineer a Custom Cart for Your Application?
Describe your load, interface requirements, and operating environment. We will review the requirements and propose a custom cart design that meets your application — with full engineering documentation.
Modular Solutions — 4280 Giddings Rd, Auburn Hills, MI 48326