Hangzhou Hongsheng Intelligent Technology Co., Ltd.
杭州弘晟智能科技有限公司
Hongsheng supplies vacuum components and control-system work to the companies that build and maintain PV and semiconductor equipment. Come with a drawing and duty conditions; you will be quoting a part or a control package, not a production line.
Supplier at a glance
- Location
- Hangzhou, Zhejiang
- Equipment listed here
- Crystal growth components
- Featured product family
- Ferrofluid vacuum-seal transmission devices [2]
- Profile sources
- 3 named sources; source list
Company scope
What the company makes
Hangzhou Hongsheng Intelligent Technology was set up in September 2015 and works on precision vacuum products and electrical automation for photovoltaic and semiconductor machinery. Its catalogue runs from welded bellows, vacuum valves and controllers to ferrofluid vacuum-seal transmission devices, hydraulic systems and integrated mechanical, electrical and hydraulic controls.
Each of these parts plugs into somebody else's machine, so the order is shaped by the interfaces of the furnace or chamber it will sit in. The company site shows separate electrical-control, precision-manufacturing and vacuum-product workshops. The English name used here is a translation of the Chinese company name; ask Hongsheng for its registered English form before contracting.
Company scope sources: [1]
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.
Ferrofluid vacuum sealing transmission devices →
Hongsheng builds ferrofluid vacuum sealing transmission devices, the rotary feedthroughs that carry motion through a vacuum wall in PV and semiconductor equipment such as crystal-growth furnaces. The catalogue shows several configurations under one family name, without a shared model number or spec… [2]
Specifications & selection questions →Two kinds of order
Quote vacuum hardware and control systems as separate packages
Vacuum hardware
Hongsheng's product menu splits welded bellows, valves and ferrofluid rotary seals into their own families. The seal category is shown with photographs only; it gives no shaft diameter, speed, temperature range, pressure differential or leak limit for any model. Open the conversation with your part drawing and an operating-condition sheet, and ask Hongsheng to propose a model with its limits written on the drawing. Plan replacement seals together with the other crystal growth components you change at the same puller shutdown. [1][2]
Electrical and hydraulic work
Control-system development and full system service, spanning mechanical, electrical and hydraulic functions, are offered as a separate line. The workshop photos carry labels for electrical control, precision manufacturing and vacuum products, which points to different teams. Ask which machining, assembly and testing steps your order goes through, and whether the controller, cabinet, software, hydraulic assembly and machine integration are in the price. [1]
National standards plan
Hongsheng helps draft the ferrofluid feedthrough standard
Plan 20254007-T-604
China's national standards portal names 杭州弘晟智能科技有限公司 as a drafting organisation for plan 20254007-T-604, a recommended revision of the generic requirements for ferrofluid rotary feedthroughs. On 2026-10-07 the plan was waiting for approval and set to replace GB/T 32292-2015. For a quoted seal, ask which edition it is built and tested to, and request the test report for your unit. [3]
Preparing the request
Start the request from your drawing
Describe the interface
Send the shaft and flange drawing with rotation duty, vacuum level, temperatures and process exposure. Ask Hongsheng to return the specification with its accepted limits and any exceptions marked. These figures come from your machine, so you set them. In solar wafer processing such seals are fitted to crystal growth furnaces, where they carry seed and crucible rotation through the chamber wall.
Agree what proves the part is right
Fix the leak-test method and conditions, how the delivered assembly is identified and which records you need for acceptance. If controls are part of the order, settle alarm and interlock behaviour with your machine integrator. Name who answers for the component and who answers for the whole vacuum chamber or furnace. Vacuum deposition tools with rotating parts use similar feedthroughs, so name the host tool on your enquiry.
Project fit
Match the offering to your project
Equipment builders and maintenance teams buying vacuum components and the controls around them.
Projects that already have a drawing and duty conditions and need a seal, valve or bellows proposed against them. Model selection happens in that technical exchange with Hongsheng.
Confirm before ordering
- Numerical ratings for the rotary-seal model offered, and the acceptance report for the delivered part.
- Current certification documents and the workshops where your part is made.
- How the part meets the receiving machine, who integrates it and who runs which test.
Hongsheng's application page talks about energy and chemical plants in general terms and names no PV installations; its standards work is a drafting role in a revision plan.
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 Ferrofluid vacuum sealing transmission devices 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 requestBuyer questions
Does Hongsheng's role in the standards plan certify its seals?
It means Hongsheng helped draft a revision that was still awaiting approval on 2026-10-07. For your seal, ask for a test report against the agreed method. [3]
Can I pick a seal model from the catalogue photos?
The category page carries no operating limits, so selection needs a drawing and a model specification from Hongsheng. [2]
How do I compare a magnetic-fluid seal with a complete vacuum assembly?
Describe the real shaft motion, flange interface, process environment and test conditions. Ask which seal, bearings, drive and control parts are supplied and who leak-tests the assembled unit. Agree the expected seal life and who carries vacuum-system responsibility in the contract.
Sources
Where this information comes from
Drawn from Hongsheng's company page, its ferrofluid seal category and the national standards-plan record for 20254007-T-604.
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.
- Hongsheng company page and workshops ↗Manufacturer company page · Checked Checked 2026-10-07
Founding date, component families, control services and workshop photos.
- Hongsheng ferrofluid seal category ↗Manufacturer product category · Checked 2026-10-07
Seal family and product photos; operating limits come with a model quote.
- SAMR standards plan 20254007-T-604 ↗National standards plan · Checked 2026-10-07
Drafting organisations and plan status for the ferrofluid feedthrough revision.
Report a correction · How we prepare listings · Represent this manufacturer?
Build a useful enquiry
Start with the documented equipment, then define the configuration and acceptance criteria for your project.
Prepare the checklist ↓Saving or comparing does not send a request. The next screen handles account access and the actual sourcing workflow.