Overhead Chain Spray Line
Suspended overhead conveyor system that transports workpieces through pretreatment, spraying, curing, and cooling stages — ideal for high-volume small-part coating. MUSI Technology, based in Changzhou, China, designs and manufactures this equipment in-house and has delivered 800+ coating lines to 36 countries, with on-site installation and operator training included.
Workpiece weight ≤25 kg, length ≤2.5 m, cycle time 3-8 sec/piece
Overhead Chain Spray Line Overview
An overhead chain spray line carries hanging workpieces on a suspended conveyor through pretreatment, spraying, curing and cooling without manual handling between stages.
Built for hardware, automotive small parts, lighting and appliance shells up to 2,500 × 800 × 1,500 mm and 25 kg, at a chain speed of 0.5-5 m/min.
Technical Specifications
The table below shows standard specifications. For custom requirements (non-standard size, specific heating method, robot integration, etc.), please contact MUSI engineers to confirm.
| Industries | Hardware, automotive small parts, lighting, appliance shells |
|---|---|
| Workpiece size | L ≤2500 × W ≤800 × H ≤1500 mm |
| Chain speed | 0.5 - 5 m/min, infinitely adjustable |
| Cycle time | 3-8 sec/piece (adjustable) |
| Heating | Natural gas / Electric (selectable) |
| Control system | Siemens PLC + HMI touchscreen |
| Total length | 60-150 m (custom-engineered) |
Product Features
- Application-Specific Design — optimized for workpieces up to 25 kg and 2.5 m long, at a cycle time of 3-8 sec/piece, avoiding mismatched capacity or wrong sizing.
- Stable Operation — core components from imported or top-tier domestic brands (Siemens PLC, ABB drives, SEW motors). 100% factory testing pre-shipment. Brands are selected to the customer's specification and confirmed in the approved configuration.
- Energy & Environment — heat recovery, VFD drives, and intelligent shutdown deliver 20%-30% energy savings versus conventional equipment.
- Easy to Operate & Maintain — user-friendly HMI, standardized fault codes, and routine maintenance manageable by your in-house technicians.
- Line Integration — seamlessly integrates with MUSI's pretreatment, curing, and environmental equipment for a complete production line.
Video: overhead conveyor coating line
This 17-second video shows workpieces carried along an overhead conveyor through a coating workshop. Watch it here or on the MUSI Technology YouTube channel.
| Video | Length | What it shows |
|---|---|---|
| Overhead Conveyor Coating Line | 17 s | Workpieces carried along an overhead conveyor in a coating workshop. |
Application References
This product has performed excellently in MUSI's customer installations. Selected references include:
- Vietnam — Tier-1 automotive parts supplier: 600,000 pcs/year coating line, 4+ years stable operation with no major faults
- UAE — Aluminum profile manufacturer: Replaced imported equipment, reduced energy use by 28%, saving ~$85K USD per year
- Mexico — Hardware exporter: Two-shift operation, daily output up from 5,000 to 12,000 pcs, 99.5%+ film quality pass rate
More references in our Case Studies section.
Service & Warranty
- Solution Design — free CAD line layout, process flow, and equipment list
- Warranty — 12 months full machine, 36 months on critical components (structural parts up to 60 months)
- Installation & Commissioning — engineers travel to your site for installation through production launch
- Operator Training — 3-5 days of free training for operators and maintenance technicians
- Response Time — 24-hour phone response, 72-hour on-site arrival (international)
Frequently Asked Questions
QQuestions buyers ask before ordering
quotation · price · lead time · installation · warranty
What information do you need to prepare a quotation?
Send part drawings or photos, the largest part size and weight, the material, the required output per shift, the paint or powder type and number of colours, and the available floor space, ceiling height and power or gas supply. MUSI engineers reply within 24 hours; a recommended configuration and quotation follow once your part data is complete.
How much does this equipment cost?
Budget depends on part size, throughput and the level of automation. Indicative ex-works ranges are published in our liquid spray line cost guide; a configured quotation is prepared from your part data. Published indicative ranges: compact manual liquid spray booths from around USD 15,000–40,000, semi-automatic lines with conveyor and flash-off/curing ovens roughly USD 80,000–400,000, and fully automatic multi-colour electrostatic lines from USD 400,000 to several million dollars.
What is the lead time?
Standard configurations ship in 30–60 days from contract signing and down payment; custom configurations take longer. The delivery date is fixed in the contract.
Do you install and train operators overseas?
Yes. MUSI engineers carry out on-site installation and commissioning and give 3–5 days of operator and maintenance training. MUSI has delivered 800+ coating lines to customers in 36 countries.
What warranty and after-sales support are included?
12 months full-machine warranty, 36 months on critical components and up to 60 months on structural parts. International customers get 24-hour phone response and 72-hour on-site arrival; spare parts ship from the Changzhou headquarters.
Can the environmental equipment be supplied with the line?
Yes. VOC treatment (RTO, RCO, activated carbon, zeolite rotor), dust collection and paint wastewater treatment are supplied with the coating line under one contract; MUSI has equipped 50+ coating facilities whose projects all passed local environmental compliance reviews.
More questions from buyers
Is the overhead chain line also a powder coating conveyor?
Yes. The same overhead chain works as a powder coating conveyor or a liquid paint conveyor: chain speed is 0.5-5 m/min and the workpiece window is up to 2,500 x 800 x 1,500 mm.
Related: coating line conveyor guide