Suzhou Calowen Automation Technology Co., Ltd.
苏州卡洛文自动化科技有限公司
Calowen supplies module assembly and junction box lines, and it trades new and used machines. Its CLW-BT2787-D1 laminator is a very large unit: 40.5 m long, 170 t and 580 kW rated. Ask for a quote that names the configuration, the machine condition and the acceptance test.
Supplier at a glance
- Location
- Suzhou, Jiangsu
- Equipment listed here
- Module laminators
- Laminator model
- CLW-BT2787-D1 [1]
- Profile sources
- 7 named sources; source list
Company scope
What the company makes
Suzhou Calowen Automation Technology sells equipment for several steps of solar module making. Its website groups module assembly lines, junction box assembly lines, aluminium frame cutting lines and encapsulant film production lines as separate product families. The CLW-BT2787-D1 module laminator has the fullest data sheet, with power, temperature, vacuum, size and weight figures.
The laminator figures are big. Calowen lists a machine 40.5 m long, 3.7 m wide and 3.4 m high, weighing 170 t, with 580 kW of rated power. Start any laminator enquiry with the current layout drawing and utility schedule, because these numbers shape your building, floor and power supply.
Calowen's company page says it sells both new and used equipment. The junction box catalogue covers box, diode and cable assembly, cable cutting with connector tightening, and connector assembly. Those machines handle small parts before the module is finished, so they need their own drawings and quotes.
The contact page gives a Suzhou address and named sales staff. For each offer, ask Calowen which site builds or refurbishes the machine, what it supplies itself and which interfaces the technical proposal covers.
Equipment portfolio
Start with the actual equipment
The entries below cover selected products and series from this manufacturer. Ask for the full catalogue if your project needs other models.
Photovoltaic module laminator →
The Calowen CLW-BT2787-D1 is a vacuum laminator for encapsulating solar modules. Calowen lists 30–180 °C, ±1 °C accuracy and 40–100 Pa operating vacuum. Each chamber is evacuated and inflated on its own, and the controls store process settings, count cycles and log… [1]
Specifications & selection questions →Product families and machine condition
Pick the line and the machine condition before you ask for a price
| Offering | Document to request first | Points to settle in the quote |
|---|---|---|
| New equipment | Current configuration drawing and utility schedule | Building site, options supplied and the acceptance revision |
| Used equipment | Serial number, age, condition report and work history | Refurbishment done, spare parts support and any control changes |
| Module assembly line | Your module stack and a process flow with interfaces | Stations, handling, line balance and good output at acceptance |
| Junction box assembly line | Drawings of housing, terminals, cable, diodes and connectors | Joining method, test stations, variants, rejects and traceability |
Calowen lists new and used equipment as two lines of business. Each laminator quote should state which one applies, with its own origin and condition. [3][5]
Junction box joining is a separate project
Calowen published an article on crimping versus welding for junction box lines. It treats the choice as a design and validation decision that follows the terminal and cable you use. That topic belongs to a junction box line and has nothing to do with the laminator. For that line, ask for the joining setup, the electrical tests and how variants and changeovers are handled. [6][5]
CLW-BT2787-D1 data sheet
CLW-BT2787-D1 power, temperature and installation figures
| Parameter | Listed value | What it means for your plan |
|---|---|---|
| Rated / average working power | 580 kW / ≤255 kW | Connected load and average use are two different numbers |
| Temperature range | 30–180 °C | Machine operating range; your encapsulant sets the recipe |
| Temperature accuracy / uniformity | ±1 °C / ≤±1.5 °C | Each figure needs its own measuring method |
| Operating vacuum | 40–100 Pa | Pressure level only; pump-down time is not listed |
| Dimensions / weight | 40.5 × 3.7 × 3.4 m / 170 t | Plan the layout, foundation and installation work |
Figures as Calowen publishes them. Write the units, configuration and current revision into the signed specification. [1]
Power supply and energy per module
The machine runs on AC380 V three-phase power. Calowen gives a 580 kW rated figure and an average working figure of up to 255 kW, without saying which period or recipe the average covers. To compare running costs, split heating, idle and production time, then measure energy against accepted modules on your own recipe. The 40.5 m length and 170 t weight call for a current layout drawing and a foundation design before you commit floor space. [1]
How temperature and vacuum are measured
Calowen describes chambers that are evacuated and inflated one by one, lifted by an eight-column pneumatic frame. Accuracy, uniformity and vacuum each describe a different property. Ask where temperature is measured across the heated area, whether the vacuum range holds with a load in the chamber, and how your glass and film stack will be tested. The data sheet gives no usable chamber area, module recipe or cycle time per finished module, so request those for your order. [1]
Laminator control functions
Recipe memory, process curves and power-failure controls
Stored settings, curves and cleaning
The laminator keeps its process settings after a restart. It logs operating steps and lamination counts, and it plots upper and lower vacuum, heating plate temperature and alarms. Calowen also describes dust collection and circulation cleaning. Ask how often data is sampled, which file format it exports in and how long it is kept. A curve on screen helps the operator; a batch record you can trace needs export and storage, and the cleaning functions need a written maintenance routine. [1]
Manual opening after a power cut
Calowen fits manual inflation and opening controls for use after an unexpected power failure. Ask for the safe recovery procedure, the interlock logic and the conditions under which a loaded chamber may be opened. The ENF industry directory lists Calowen, its website and its module equipment categories at the same Suzhou address, which helps you match the company name to the website. [1][2]
Company documents to request
Certificates, shipment references and contract responsibilities
Certificates for the machine you buy
Calowen's company page mentions government recognitions, ISO9001 and CE, ETL and UL product marks. It does not list certificate numbers, the holder, the covered models or expiry dates. Ask for the documents that cover your exact configuration and destination market, and pay extra attention when the machine is used or has modified controls. [3]
The Greece shipment article
An April 2025 article on the Calowen site reports a 300 MW module line shipped to Greece after factory testing. It does not name the contracting customer or include a signed site acceptance record. Treat it as a starting point for a reference call: ask which stations were supplied, how the line was configured and what acceptance documents the customer signed. [7]
Who does what under the contract
Use the Suzhou contact details to open the contract channel. Then ask Calowen to name the manufacturing or refurbishing site, the installation team, the manuals, spare parts and support included in the offer. The company page also describes its factory area and staff; a site visit lets you see them for yourself. [4][3]
Project fit
Match the offering to your project
Calowen suits buyers who need a module laminator with published utility figures and built-in process records. Settle the chamber and layer arrangement and the installation drawing first. If you also need a module assembly or junction box line, quote those machines separately with their interfaces, since each has its own specification.
Confirm before ordering
- A chamber and layer drawing for the CLW-BT2787-D1 with the usable module layout.
- The recipe and period behind the 255 kW average, plus pump-down time with a loaded chamber.
- A temperature map of the heated area measured under agreed conditions.
- Certificate numbers, holder and covered models for the offered laminator, and signed commissioning records for any reference line.
Figures and functions follow Calowen's current laminator page, company and contact pages, junction box catalogue and articles.
Certificates & approvals
Approvals on file
No factory audit or equipment certificate is on file for this manufacturer yet. Ask for current certificates, with their scope and validity, in your quotation request.
Prepare before contacting
Your Photovoltaic module laminator enquiry checklist
Tick the questions that apply to your project, then take them into your sourcing request. Ticking an item here does not contact the manufacturer.
Your selections remain on this page and are cleared on reload. Download or print to keep a copy. No checklist selections are uploaded.
Continue to sourcing requestRelated procurement notes
Utilities and installation requirements for PV manufacturing equipment
Buyer questions
Is the 255 kW average the same as the electrical load?
No. Calowen lists 580 kW rated and up to 255 kW average working power. Size the supply from the confirmed utility schedule and measure use on your own recipe. [1]
What does the ENF listing tell me?
ENF lists Calowen's name, website, Suzhou address and module equipment categories. It helps you identify the company. Machine performance is agreed in your own acceptance test. [2]
What should happen if power fails with a loaded chamber?
Ask Calowen for its approved procedure covering vacuum, opening and restart with a loaded chamber. Review it against the utilities and controls in your offer. The manual opening controls are meant to be used inside that procedure, especially when the chamber is hot. [1]
Sources
Where this information comes from
Calowen's laminator, company, contact and catalogue pages were checked on 2026-10-11; ask Calowen to confirm the building site and current certificates for your order.
Company facts come from the publications listed below, each with the date it was checked. The project-fit notes and enquiry checklist are our buying guidance.
- Calowen photovoltaic module laminator ↗Manufacturer product page · Checked Live 2026-10-11
CLW-BT2787-D1 model data, utilities, dimensions and control functions.
- ENF: Suzhou Calowen Automation Technology ↗Industry directory listing · Checked 2026-10-07
Company name, website, address and module equipment categories.
- Calowen company introduction ↗Manufacturer company page · Checked Live 2026-10-11
New and used equipment business, recognitions and product marks.
- Calowen contacts and address ↗Manufacturer contact page · Checked Live 2026-10-11
Suzhou address and named sales contacts.
- Calowen junction box assembly catalogue ↗Manufacturer product catalogue · Checked Live 2026-10-11
Connector, cable and box/diode assembly machines.
- Calowen article: crimped or welded junction box line ↗Manufacturer process article · Checked Live 2026-10-11; published 2026-10-09
How terminal and cable choices drive the joining method.
- Calowen article: April 2025 module line shipment to Greece ↗Manufacturer news article · Checked Live 2026-10-11; published 2025-04-21
Company account of a line shipment and factory testing.
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