About LANJIAN Machinery
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LANJIAN at a Glance
LANJIAN MACHINERY TECHNOLOGY CO., LTD. is a China-based manufacturer of custom cast, machined, and fabricated industrial components for OEM equipment manufacturers.
We support drawing-based projects involving structural castings, welded frames, housings, transmission components, and wear-resistant parts, with manufacturing, inspection, assembly, and export coordination.
BASIC | STANDARD |
Company | LANJIAN MACHINERY TECHNOLOGY CO., LTD. |
Business Type | B2B custom manufacturing and export support |
Main Products | Structural castings, welded frames and fabrications, housings and transmission components, wear-resistant parts |
Manufacturing Processes | Sand casting, lost foam casting, CNC machining, welding and fabrication, surface finishing, assembly |
Materials | Stainless steel, carbon steel, alloy steel, cast iron |
Customer Type | OEM equipment manufacturers, machinery manufacturers, procurement and engineering teams |
Custom Manufacturing | Based on drawings, 3D models, samples, or technical requirements |
Industries | Mining, construction, material handling, energy equipment, agricultural machinery |
Custom Manufacturing Scope
LANJIAN supports custom industrial component projects across different component types, industries, manufacturing processes, and materials.
Custom Component Scope
- Structural Castings
- Welded Frames & Fabrications
- Housings & Transmission Components
- Wear Resistant Parts
Industries We Support
- Mining Equipment
- Construction Equipment
- Material Handling Equipment
- Energy Systems
- Agricultural Machinery
Manufacturing Capabilities
- Sand Casting
- Lost Foam Casting
- CNC Machining
- Welding & Fabrication
- Surface Treatment & Finishing
- Assembly
One Project. One Manufacturing Partner.
LANJIAN coordinates drawing review, manufacturing, inspection, export preparation, and project follow-up within one connected workflow.
Drawing and Process Review
Drawings, materials, machining areas, tolerances, and application requirements are reviewed before the manufacturing route is confirmed.
One Coordinated Manufacturing Route
Casting, welding, CNC machining, surface finishing, inspection, and assembly are coordinated around the same drawings and project requirements.
Quality Requirements Kept Aligned
Critical dimensions, machined features, surface requirements, inspection points, and packaging needs remain linked to the same confirmed specifications.
Export and After-Sales Coordination
Packaging, documentation, shipment preparation, and post-delivery feedback are handled through the same project contact and related order records.
Testing and Quality Control
Quality requirements are defined according to the drawing, material, manufacturing route, machining features, application, and customer inspection needs.
Inspection methods are confirmed for each project and may be completed internally, through the manufacturing facility, or by an agreed third-party laboratory.
Dimensional and Machining Inspection
Dimensional checks focus on features that affect installation, alignment, connection, and assembly.
- Overall dimensions
- Machined surfaces
- Mounting holes and positions
- Bearing seats and bores
- Threads and tapped holes
- Flatness and parallelism
- Critical assembly dimensions
Material and Structural Inspection
Inspection methods are selected according to the material specification, component structure, and project requirements.
- Material certificate review
- Chemical composition verification, when required
- Mechanical property or hardness testing
- Casting and surface inspection
- Welding appearance and dimensional checks
- NDT or third-party testing, when specified
Final Inspection and Export Preparation
Final checks cover the completed component, protective measures, packaging condition, and required shipment records.
- Final dimensional verification
- Appearance and surface finishing
- Quantity and identification
- Machined surface protection
- Rust-prevention measures
- Packaging inspection
- Shipment photos and required records
Experience Built Through Real Projects
A selection of custom cast, machined, welded, and finished industrial components from drawing-based manufacturing projects.
Meet the Team Behind Your Project
From project communication and drawing review to production, quality control, and shipment coordination, each role supports a clear path from inquiry to delivery.
Abraham Bancroft
CEO | Founder
Abraham Bancroft
CEO | Founder
Abraham Bancroft
CEO | Founder
Abraham Bancroft
CEO | Founder
Common RFQ Questions
Before production, we confirm the approved drawing, material specification, critical dimensions, machining features, surface requirements, and required inspection records. This helps ensure production and inspection follow the same agreed specifications.
Yes. Depending on the project, LANJIAN can coordinate material verification, hardness or mechanical testing, NDT, dimensional inspection, and independent third-party inspection. The required method, standard, scope, report, and cost are confirmed before production.
Production and inspection follow the approved drawing version. When requirements change, the revised information is reviewed and communicated before further work continues, helping prevent outdated drawings or missed technical details.
Yes, depending on the project. Available records may include production photos, dimensional inspection results, testing reports, finished-part images, packing photos, and third-party inspection reports.
The issue is reviewed against the approved drawing, order requirements, inspection records, production information, and customer feedback. LANJIAN coordinates the investigation and works with the customer on an appropriate response based on the verified cause and agreed order terms.
Have a Part That Needs Manufacturing?
Send what you have — Drawings, Sketches, Photos, Samples, Dimensions, or Working Conditions. LANJIAN will review the manufacturing route, material concerns, machining points, surface needs, and quotation requirements.