Finding a reliable sandwich panel machine supplier in China can feel like searching through a crowded catalog. Some manufacturers specialize in continuous PU/PIR lines. Others focus on rock wool, EPS, or discontinuous presses. The right choice depends on your panel drawing, core material, output target, and after-sales support, not just the brand name.
To help you start your search, we have compiled a shortlist of ten established manufacturers in China. This list includes specialized PU/PIR line builders, rock wool line experts, and versatile equipment suppliers. Each name represents a different production philosophy and equipment capability.
Whether you plan to produce cold room panels, roofing sheets, or wall cladding, this list is a starting point, not a ranking and not a certification. Always verify each supplier against your actual panel specification.
How We Picked These 10 Sandwich Panel Machine Manufacturers
We kept companies only when their current public material showed a China address and a named sandwich panel line. We then compared core options, continuous or discontinuous formats, process coverage, technical documentation, and installation support. The order reflects product breadth and buyer usefulness, not audited revenue, capacity, or market share.
Information was checked in September 2026. Before paying a deposit, verify the supplier’s legal name through China’s National Enterprise Credit Information Publicity System. Then match the quotation to your actual panel drawing. A polished website can’t prove that the quoted machine will make your joint profile.
1. YZ Welding
YZ Welding is a practical first call when your project may cover both foam and mineral-wool panels. Its multi-use PU and rock wool panel line gives buyers a clear basis for discussing shared stations, separate core-handling modules, and changeover needs. The company can work from panel dimensions, facing material, plant space, and automation needs. Ask for a module-by-module scope, because “combined line” never means every station is shared.
2. Zhejiang Jinggong
Zhejiang Jinggong publishes separate equipment pages for continuous PU/PIR, rock wool, and EPS sandwich panel lines. Its public documentation also breaks the process into recognizable stations, including decoiling, roll forming, preheating, foaming or core feeding, laminating, cutting, stacking, and packing. Jinggong belongs on a shortlist when you want a large continuous system and enough technical detail to challenge the first proposal before a factory visit.
3. Shanghai Zhongji Machinery
Shanghai Zhongji Machinery documents a broad range: PU, rock wool, EPS, clean-room, refrigerated-carriage, and discontinuous PU panel equipment. That range can help buyers who plan several panel families or need upstream EPS machinery as part of the same sourcing program. Breadth also creates homework. Request one responsibility matrix that names each machine builder, control-system boundary, utility connection, and acceptance test.
4. Wuxi Weihua Machinery
Wuxi Weihua Machinery publishes continuous PUR/PIR lines, rock wool systems, soft-facing options, and discontinuous PU presses. Its site also shows PU foaming equipment and panel-forming machines, which makes process integration the main discussion point. Weihua is worth reviewing for cold-chain or building-envelope projects where the foaming unit and double-belt laminator must be evaluated together, rather than priced as unrelated machines.
5. GX Tech
Hebei Guangxing Machinery Technology, branded GX Tech, lists continuous PU/PIR and rock wool sandwich panel lines as well as complete rock wool production plants. That wider mineral-wool background is useful when the project includes core preparation, not just panel lamination. Ask GX Tech to separate the raw-material plant, lamella system, adhesive section, edge-sealing option, and finished-panel handling in its offer. Those boundaries drive both layout and budget.
6. Sinowa Industrial Technology
Sinowa focuses its public material on higher-automation continuous PU/PIR and mineral-wool lines. The company describes modular line design, linked controls, bus communication, fault diagnosis, and remote interaction. That makes Sinowa relevant when controls and data access matter as much as mechanical speed. During technical review, ask who owns the PLC code, which parameters can be exported, and what remote support still works if the plant restricts outside network access.
7. Xinnuo Roll Forming Machine
Xinnuo lists PU, EPS, rock wool, and Z-lock panel lines, plus cutters, stackers, packing machines, and rock-wool slitting equipment. It may suit a buyer who wants several panel formats and prefers to compare manual, semi-automatic, and automatic handling choices. Pay close attention to line integration. Confirm that speed values refer to saleable panels under your material recipe, not the maximum speed of one isolated station.
8. Zhejiang Henghui Machinery
Zhejiang Henghui Machinery is the specialist option in this list. Its range centers on polyurethane processing, including continuous panel lines, discontinuous presses, and PU metering equipment. A discontinuous system can make sense for lower volume, thicker cold-room panels, or frequent product changes. It won’t match the output of a continuous line. Ask Henghui to compare labor, mold or press capacity, curing time, floor space, and changeover time under the same production target.
9. Xiamen Youdeli Industrial
Xiamen Youdeli Industrial comes from the roll-forming side of the market. Its current sandwich-panel page advertises PU, EPS, and rock wool configurations with profiling, core feeding, laminating, cutting, conveying, and PLC control. This can be attractive when custom sheet profiles are central to the project. Ask for a live trial using your steel thickness and profile drawing, plus the make and warranty owner for every bought-in core-processing module.
10. Hangzhou IUWON Technology
Hangzhou IUWON Technology also has a strong roll-forming focus. Its public line description covers EPS, PU, PIR, and rock wool configurations and asks buyers for panel drawings, core density, width, thickness, steel grade, output, and utilities. That RFQ discipline is sensible. IUWON’s own company page also mentions a partner supply network, so confirm which equipment is made in-house and who handles commissioning, software changes, and spare parts for each station.
Compare Sandwich Panel Machine Manufacturers
Start with process fit, not a logo. A PU/PIR line needs accurate chemical metering and stable double-belt conditions. A rock wool line needs dependable lamella cutting, orientation, gap control, adhesive application, and dust management. EPS projects use a different bonding and core-feeding setup. One quotation template can’t compare all three fairly.
| Manufacturer | Strongest public fit | Ask about first |
|---|---|---|
| YZ Welding | PU/PIR/Rockwool projects | Shared modules and changeover |
| Jinggong | Large continuous PU/PIR, rock wool, or EPS lines | Exact line scope and output basis |
| Zhongji | Broad panel and EPS equipment programs | Responsibility across supplied systems |
| Weihua | PUR/PIR, rock wool, and discontinuous PU | Foaming and laminator integration |
| GX Tech | PU/PIR panels plus mineral-wool processing | Core-preparation boundaries |
| Sinowa | Higher-automation continuous lines | Controls, data, and remote access |
| Xinnuo | Multi-core and Z-lock configurations | Saleable output and handling level |
| Henghui | PU continuous or discontinuous production | Volume, curing, and changeover |
| Youdeli | Profile-led panel projects | In-house versus bought-in modules |
| IUWON | Roll-forming-led custom configurations | Partner scope and warranty ownership |
If you are looking for a sandwich panel machine manufacturer in China, contact YZ Welding. Send us your panel drawing, core material, target output, and factory space. We will respond with a line configuration and a clear scope of supply.
FAQ
Who makes sandwich panel machines in China?
China-based options with current public line information include YZ Welding, Jinggong, Zhongji, Weihua, GX Tech, Sinowa, Xinnuo, Henghui, Youdeli, and IUWON. The best match depends on core material, panel design, production format, and project support.
How much does a panel line cost?
There isn’t one useful list price. Cost changes with core type, speed, panel range, double-belt length, automation, handling, utilities, installation, and the acceptance test, so compare itemized offers built from one RFQ.
Can one line handle several cores?
Yes, if it is engineered as a combined system. PU/PIR, rock wool, and EPS need different preparation, dosing or adhesive, feeding, curing, and safety steps, so confirm shared modules and realistic changeover time.
How do I verify a manufacturer?
Match the sales entity, contract entity, bank beneficiary, and factory registration. Then inspect the plant, review drawings, speak with named project references where permitted, and run a witnessed test using materials close to your production recipe.
