OEM Metal Products — 8 Product Lines From One Certified Factory
Qingdao Tianhua Yihe Metal Fabrication manufactures eight OEM metal product lines in a single 7,000 sqm factory in Qingdao, China: custom welded equipment base frames, structural steel fabrication (columns, platforms, pipe racks, ladders), retaining wall steel posts, hot-dip galvanized marine and offshore products, combine harvester machinery components, solar & BESS mounting systems, slurry pump OEM parts, and industrial equipment fabrications. Every product is made to customer drawings, welded under an ISO 3834 quality system to AWS D1.1 / AS/NZS 1554.1 procedures, with structural work to AS/NZS 5131 and hot-dip galvanizing to AS/NZS 4680. The factory has exported OEM metal products to Australian, US and European buyers for 20 years.
Quick answer: Need custom-made metal products from China? Tianhua Yihe makes welded equipment bases, structural steel columns and platforms, retaining wall posts, marine mooring plates, harvester components, solar mounting systems and slurry pump parts — all to your drawings, all certified for the Australian market, all from one factory. Send DWG/DXF/STEP/PDF: quote in 24 hours, sample in 24 hours, bulk in 7–15 days.
The Eight Product Lines
Custom Drawing Manufacturing OEM
Welded machine base frames and support structures built to drawing: mixer base frames, generator bases, compressor mounting bases, motor mounting frames, gear reducer supports, vibrating screen frames, conveyor frame assemblies, robotic arm pedestals, and coupling guards. Machined pads, dowel holes and anti-vibration features included.
Structural Steel Fabrication
Heavy-duty structural products: cross bracing frames, equipment support bases, multi-level pipe racks, mezzanine platform frames, anti-slip galvanized ladders, canopy frames, plus columns — I-beam, box, CHS tubular and laced double-channel — with cap plates, base plates, gussets and web stiffeners, hot-dip galvanized for outdoor service.
Retaining Wall Steel Posts
Galvanized steel I-beam retaining wall posts with fabricated welded brackets, cut to length and drilled to your sleepers. Galvanized to AS/NZS 4680 for long-term ground contact and coastal exposure.
Marine & Offshore Products
Hot-dip galvanized steel mooring plates and welded marine structural parts for dock, harbor and offshore applications, HDG-processed for salt-water environments and export shipment.
Agricultural Machinery Components
Combine harvester OEM components: auger assemblies with grain flighting, threshing concave grates, feeder drum inlet cones, rasp bar assemblies, threshing drum assemblies and pickup reels — wear parts for harvesters and threshers, HDG optional.
Solar & BESS Mounting Systems
Sheet metal welded mounting structures for solar PV and battery energy storage systems: brackets, rails, frames and support assemblies, galvanized or powder coated, built to project arrays and site loads.
Slurry Pump OEM Parts
Welded base frames and structural support parts for slurry pump manufacturers: pump bases, skids, mounting frames and guards, welded to drawing and finished for abrasive-service installations.
Industrial Equipment Fabrications
Welded fabrications for industrial equipment builders: machine frames, housings, guards, pedestals and assemblies — from single prototypes to batch production, with trial-fit assembly and BOM kitting available before shipment.
Product Lines at a Glance
| Product line | Typical products | Finishing |
|---|---|---|
| Custom drawing OEM | Mixer / generator / compressor / motor bases, pedestals, guards | Paint, powder, HDG optional |
| Structural steel | Columns, bracing, pipe racks, mezzanines, ladders, canopies | HDG to AS/NZS 4680 |
| Retaining wall posts | Galvanized I-beam posts with welded brackets | HDG to AS/NZS 4680 |
| Marine & offshore | Mooring plates, dock steel parts | HDG, salt-environment ready |
| Agricultural components | Augers, concaves, rasp bars, drums, reels | HDG optional |
| Solar & BESS mounting | Brackets, rails, frames, supports | HDG / RAL powder |
| Slurry pump parts | Pump bases, skids, frames, guards | Per drawing |
| Industrial fabrications | Machine frames, housings, assemblies | Per drawing |
Every Product Follows the Same Process
Send a drawing in DWG, DXF, STEP or PDF → geometry confirmed and quoted within 24 hours, with DFM issues flagged before tooling → sample within 24 hours of drawing confirmation → first-article inspection on critical dimensions → batch production with in-process checks → final dimensional report packed with your shipment. Products needing machining, galvanizing or assembly flow on inside the same factory — one revision history from drawing to container.
Why Buyers Put These Product Lines in One Container
A base frame, its guarding, the structural steel it sits on and the galvanized hardware around it usually come from four vendors — four tolerances, four freight costs, four places to fail. The same 7,000 sqm floor that cuts the plate welds the frame, machines the mounting face, dips it in zinc and trial-fits the assembly. When the parts meet at your site, 94% fit the first time — because they were never designed to meet anywhere else.
Factory Facts
| Item | Fact |
|---|---|
| Factory | 7,000 ㎡ single-roof facility, Qingdao, China |
| Experience | 20 years OEM export — Australia, US, Europe |
| Certifications | ISO 9001:2015 · ISO 3834 · AWS D1.1 · AS/NZS 1554.1 · AS/NZS 5131 · AS/NZS 4680 |
| Materials | Q235/Q345, Grades 250/350, 304/316L stainless, aluminum |
| Speed | Quote 24h · sample 24h · bulk 7–15 days (HDG +3–7 days) |
| MOQ | One piece — prototypes welcome |
Products FAQ
What products does Tianhua Yihe manufacture?
Eight OEM metal product lines: custom welded equipment base frames, structural steel fabrication (columns, platforms, pipe racks, ladders), retaining wall steel posts, marine mooring plates, combine harvester components, solar and BESS mounting systems, slurry pump OEM parts, and industrial equipment fabrications — all made to customer drawings.
Do you make products to custom drawings?
Yes — custom drawing manufacturing is the core business. Send DWG, DXF, STEP or PDF; quotes within 24 hours, samples in 24 hours from confirmed drawings.
What standards are your products built to?
ISO 3834 quality systems, AWS D1.1 and AS/NZS 1554.1 welding procedures, AS/NZS 5131 structural fabrication, AS/NZS 4680 hot-dip galvanizing, ISO 9001:2015 factory system.
What is the MOQ and lead time for OEM products?
One piece for prototypes. Quote 24h, sample 24h, bulk 7–15 days; HDG batch adds 3–7 days.
Can you supply products ready for outdoor and marine environments?
Yes — AS/NZS 4680 hot-dip galvanizing is in-house, plus SA 2.5 blast preparation and RAL powder coating.
Have a drawing? Send it for a free quote and DFM review — materials, tolerances, finishing and lead time itemized, within 24 hours.
