Metal Fabrication Services - 11 Capabilities, One 7,000㎡ Roof
Qingdao Tianhua Yihe Metal Fabrication is an OEM factory in Qingdao, China, offering eleven metal fabrication services under a single 7,000 sqm roof: three full-service categories - sheet metal fabrication, heavy plate welding, and structural steel OEM manufacturing - backed by eight in-house process capabilities: laser cutting, flame cutting, metal bending, metal stamping, robot welding, metal machining, surface coating, and product assembly. The factory is certified to ISO 9001, ISO 3834, AWS D1.1, AS/NZS 5131 and AS/NZS 4680, and has exported OEM fabrications to Australian, US and European buyers for 20 years.
Quick answer: Looking for a one-stop metal fabrication supplier in China? Tianhua Yihe runs cutting, bending, stamping, welding, machining, HDG galvanizing and final assembly on one 7,000 sqm floor in Qingdao. One drawing, one supplier, one quality system - certified for the Australian market (AS/NZS 5131 & 4680) and shipping globally. Quotes in 24 hours; sample in 24 hours; bulk in 7–15 days.
The Three Service Categories
Sheet Metal Fabrication - from drawing to finished part
One-stop line for enclosures, panels, brackets and thin-gauge parts: 6kW fiber laser cutting, CNC press brake bending, stamping, welding, machining and finishing, held to ±0.1mm positioning accuracy. Best entry point for buyers testing the factory with a first article.
Heavy Plate Welding - certified process, documented quality
Medium and heavy plate fabrications welded under qualified WPS inside an ISO 3834 quality system, to AWS D1.1 and AS/NZS 1554.1 procedures, with CEV calculation, preheat discipline and full documentation. Base frames, boom brackets, crane runway beams, gusseted connections.
Structural Steel OEM - built to Australian standards
Columns, base plates, brackets, frames and assemblies manufactured to AS/NZS 5131 with AS/NZS 4680 hot-dip galvanizing, for OEMs who need Australian-standard quality without the local price tag. Twenty years of exporting to Australian buyers.
The Eight Process Capabilities
| Process | Key spec | Typical use |
|---|---|---|
| Laser cutting | 6kW fiber, ±0.1mm, carbon steel to 25mm | Sheet metal parts, enclosure panels, bracket patterns |
| Flame cutting | CNC, 25–150mm plate, bevels to 45° | Heavy plate sections, weld-ready bevel prep |
| Metal bending | Press brake to 6m bed, ±0.5°, 0.5–20mm | Brackets, frames, chassis parts, angle-critical parts |
| Metal stamping | 60–400T presses, ±0.1mm repeatability | Agricultural screens, high-volume OEM parts |
| Robot welding | ISO 3834 / AWS D1.1 / AS/NZS 5131 | Batch structural frames, repeatable weld quality |
| Metal machining | ±0.01mm, CMM verified | Machined weldments, base plates, mounting faces |
| Surface coating | HDG to AS/NZS 4680, SA 2.5, RAL powder | Corrosion protection for export and outdoor use |
| Product assembly | Trial fit, BOM kitting, 94% first-time fit | Pre-assembled units, kitted export shipments |
Why One Factory Beats a Supply Chain
Every hand-off between vendors adds tolerance stack-up, freight cost and a place where quality can quietly fail. When cutting, bending, welding, machining, coating and assembly sit under one roof, your drawing is interpreted once, tolerances accumulate once, and one supplier answers for the whole part. A laser-cut edge with under 0.2mm HAZ welds clean with no grinding loop; a machined mounting face is checked on the same CMM that will verify the final assembly. That is how first containers pass inspection the first time.
Factory Facts at a Glance
| Item | Fact |
|---|---|
| Factory area | 7,000 ㎡ single-roof facility, Qingdao, China |
| Experience | 20 years of OEM fabrication export (Australia, US, Europe) |
| Quality system | ISO 9001:2015, ISO 3834 |
| Welding codes | AWS D1.1, AS/NZS 1554.1, AS/NZS 5131 |
| Coating standard | AS/NZS 4680 hot-dip galvanizing |
| Materials | Q235/Q345, Grades 250/350, 304/316L stainless, aluminum, galvanized sheet |
| Thickness range | 0.5–20mm bending; laser to 25mm; flame cutting 25–150mm |
| Speed | Quote in 24h · sample in 24h · bulk 7–15 days (HDG batch +3–7 days) |
How an Order Moves Through the Shop
Send a drawing in DWG, DXF, STEP or PDF → we confirm manufacturable geometry and quote within 24 hours (DFM issues flagged before you commit to tooling) → sample in 24 hours from confirmed drawing → first-article inspection on critical dimensions → batch production with in-process spot checks → final dimensional report with your shipment. Parts needing bending, welding, coating or assembly flow on without re-issuing the drawing - one shop, one revision history.
Who We Serve
Australian OEM buyers are our core market - 20 years, AS/NZS certified, shipping to specification. The same capabilities serve US and European OEMs, agricultural machinery parts programs (harvester concave grates, screen and bracket parts), slurry pump manufacturers (welded bases and structural components), and perimeter security fencing programs.
Services FAQ
What metal fabrication services does Tianhua Yihe offer?
Eleven services under one roof in Qingdao, China: sheet metal fabrication, heavy plate welding, structural steel OEM manufacturing, plus eight process capabilities - laser cutting, flame cutting, metal bending, metal stamping, robot welding, metal machining, surface coating, and product assembly.
Which certifications does the factory hold?
ISO 9001:2015, ISO 3834, AWS D1.1, AS/NZS 1554.1, AS/NZS 5131 and AS/NZS 4680 hot-dip galvanizing - the full chain Australian OEMs typically require.
What materials and thickness ranges can you process?
Carbon steel (Q235/Q345, Grades 250/350), stainless steel (304/316L), aluminum and galvanized sheet. Laser cutting to 25mm; flame cutting 25–150mm with bevel prep; bending 0.5–20mm on a 6m bed.
What is the MOQ and typical lead time?
One piece for prototypes. Quotes within 24 hours, samples in 24 hours, bulk 7–15 days; HDG batch adds 3–7 days.
Can multiple processes run on one order?
Yes - all eleven services are in-house on a 7,000 sqm floor. One drawing, one revision history, one supplier accountable for the finished part.
Ready to start? Send your drawing for a free quote and DFM review - tolerance, finishing and lead time itemized, within 24 hours.