Openex manufactures custom steel transportation and railway components for OEM manufacturers. Core product categories include truck frames, trailer chassis, structural supports, bogie frames and railway underframes.
Components are manufactured from customer-supplied drawings and CAD models. Depending on project requirements, production can integrate steel cutting, forming, welding, CNC machining, dimensional inspection and surface finishing.
By coordinating multiple manufacturing processes, Openex helps OEMs reduce supplier hand-offs and manage fabrication, machining and inspection requirements for large structural components.
Integrated Steel Fabrication
Cutting • Forming • Welding • CNC Machining • Inspection • Finishing
12 m+
Large structure length capability*
120 mm
Steel plate thickness capability*
250 T
Facility lifting capacity*
OEM
Drawing-based custom production
*These figures describe general facility or manufacturing capabilities, not guaranteed limits for every component. Actual feasibility depends on design, material grade, equipment, handling requirements and project specifications.
Openex focuses on large welded steel structures and custom transportation assemblies. The following categories represent component types that can be assessed against customer engineering drawings and technical specifications.
Custom welded steel truck frames and chassis structures for commercial vehicles, off-highway equipment and specialized transport platforms. Typical manufacturing scope includes longitudinal members, crossmembers, mounting interfaces and machined connection features.
View truck frame capabilities →
Custom trailer chassis for flatbed, low-bed, heavy-haul and specialized trailers. Fabrication can include structural members, crossmembers, brackets, welded joints and machined mounting points based on customer drawings.
View trailer chassis capabilities → Custom landing-gear supports, suspension mounting brackets, fifth-wheel support structures and other load-bearing assemblies. Components are manufactured to match specific trailer designs, interfaces and load requirements.
View trailer support capabilities →
Custom structural frames, locomotive base structures, bogie frames, railcar underframes and equipment support frames. Machining and inspection requirements are established according to component drawings and customer specifications.
View railway frame capabilities →In addition to complete frames and chassis, Openex can assess custom structural parts, mounting brackets and welded subassemblies based on customer drawings and project requirements.
Structural crossmembers and connecting members used in trailer chassis and platform assemblies.
Custom welded brackets, support plates and mounting structures manufactured to customer drawings.
Reinforced support assemblies for trailer landing-gear systems, subject to design and load requirements.
Fabricated steel support plates and assemblies for heavy-duty trailer connection systems.
Welded structural frames and equipment supports for railway rolling stock, subject to engineering specifications.
Custom steel frames and load-bearing structures for modular transporters and specialized vehicles.
Openex coordinates multiple manufacturing processes according to component geometry, material specifications and customer quality requirements.
Plate and profile cutting for structural members, connection plates, brackets and detail parts.
Press-brake forming and plate rolling to achieve the profiles and geometries required by the design.
Assembly, alignment and welding of structural members and subassemblies according to approved drawings and weld details.
Machining of mounting surfaces, bores and critical interfaces that require controlled dimensional accuracy.
Dimensional inspection, visual weld inspection and specified non-destructive testing (NDT).
Surface preparation and industrial coating according to the specified corrosion-protection system.
Large transportation structures often require several production stages and careful coordination between fabrication, machining and inspection. An integrated manufacturing approach helps simplify project management and maintain control over technical requirements.
Cutting, forming, welding, CNC machining and finishing can be coordinated within one manufacturing project, reducing the need to manage multiple production suppliers.
Openex's heavy fabrication infrastructure supports the assessment of oversized steel structures and assemblies. Equipment, transportation and handling feasibility are reviewed for each project.
Inspection activities are planned around customer drawings, dimensional tolerances, welding requirements and agreed acceptance criteria.
Openex establishes inspection activities according to customer drawings, technical specifications and agreed acceptance criteria. Critical dimensions, welds, machined interfaces and documentation requirements are defined before production starts.
Inspection scope can include material verification, visual weld inspection, dimensional checks and specified non-destructive testing (NDT), depending on the project inspection plan.
View Inspection Capabilities →Material grades, certificates and traceability reviewed against project specifications.
Visual inspection and specified non-destructive testing methods based on the inspection plan.
Critical dimensions, alignment and machined interfaces checked against engineering drawings.
Inspection records and quality documents prepared according to agreed project requirements.
Openex evaluates custom steel components for manufacturers and equipment suppliers across transportation-related sectors. Component design, material and production scope are confirmed during technical review.
Truck frames, chassis structures and vehicle support assemblies.
Trailer chassis, crossmembers, structural supports and specialized transport frames.
Railway frames, underframes, bogie structures and equipment support assemblies.
Custom load-bearing structures for modular transporters and specialized vehicles.
Evaluating a manufacturer for large transportation structures requires more than a list of processes. Buyers also need to understand how the manufacturer handles large welded assemblies, machining interfaces, dimensional control and project-specific inspection requirements.
Explore Openex's project records to review examples of its fabrication and machining work. These projects demonstrate related manufacturing processes and facility experience; they should not be interpreted as transportation projects unless specifically identified as such.
Explore Manufacturing Case Studies →
Image of large steel fabrication. Refer to individual case studies for project-specific details.
To receive an accurate manufacturing assessment, send your technical package to Openex. Complete information helps our team review manufacturing feasibility, production requirements and delivery considerations.
Each RFQ is reviewed against material requirements, fabrication complexity, machining scope, inspection needs, component size and weight, and the requested delivery schedule.
If some technical details are not yet finalized, you can still submit preliminary drawings and project information for an initial discussion.
Or email directly: sales3@openex.com.cn
Send your drawings or project specifications. Openex will review manufacturing feasibility, process requirements, inspection criteria and delivery options for your project.
