About us

A component factory, not a chair brand

Hangzhou Zhongtai Industrial Group makes the parts that move inside office chairs — and we have done it for chair factories at home and abroad for the better part of three decades.

Who we are

We are based in Yiqiao Town, Xiaoshan District, Hangzhou — about half an hour from Hangzhou Xiaoshan International Airport, which is the practical reason a lot of our export cartons reach a port quickly. Our group company, Hangzhou Zhongtai Industrial Group Co., Ltd., is one of China’s larger makers of chair seat-plate mechanisms.

A note on our founding year, because we would rather you hear it from us: our group materials cite 1994, while the public business registry shows an incorporation date in 2000. Both are true depending on which entity you count from. What is not in dispute is the track record since: ISO 9001 certification from 2002, ISO 14001 from 2006, recognition as a National High-Tech Enterprise in 2009, and a provincial-level technical centre in 2010.

We run three connected lines of work: chair mechanisms (seven series of seat-plate and tilt mechanisms), five-star bases (five series in aluminium, nylon and steel), and an appliance-components division that stamps and welds metal parts for washing machines and other white goods. The appliance work is not a sideline — it is what keeps our press shop and tooling discipline sharp, and that discipline is exactly what a chair factory wants in a mechanism supplier.

What we are honest about

We sell to chair factories, importers and furniture groups — not to end users, and not under our own consumer brand. If you are a sourcing or product engineer comparing mechanism suppliers, that is who this site is written for. Several specifications on these pages are representative figures from common orders; the exact load rating, tolerance and finish for your part are confirmed against your drawing and your BIFMA target before we cut a tool. Where we have a real certificate, we name it. Where a part is built to a standard but not separately certified, we say "tested to BIFMA standards — report available" rather than implying a stamp we do not hold.

Legal entityHangzhou Zhongtai Industrial Group Co., Ltd.
LocationXiaoshan, Hangzhou, Zhejiang
Logistics~30 min to HGH airport
Hi-Tech statusNational, since 2009
R&D centreProvincial, since 2010
Quality systemISO 9001 (2002), ISO 14001 (2006)
Core linesMechanisms · bases · appliance parts
Verify us. Our group identity is public — cross-check it on our official site hz-zhongtai.com before you place a first order.
PISTON ROD Ø28 CYLINDER · CLASS 4 TAPER 2°/M (1:10) STROKE 100–200 mm
FIG.03 — GAS-LIFT CYLINDERZT-G

How we work with factories

From sample to series

  1. Brief & drawing

    You send the component type, target user weight or BIFMA cycle count, mounting pitch and monthly volume — plus a 2D/3D file or a competitor sample.

  2. Feasibility & quote

    An engineer checks it against our tool library, tells you what is standard versus new tooling, and returns a price band and lead time — usually within a business day.

  3. Sample & test

    We build a first article, run the relevant BIFMA-style load and cycle checks, and share the report so your QA can sign off before mass production.

  4. Production & kitting

    We run the series, can kit mechanism + base + gas-lift together, and pack to your carton and label spec for container shipment.

Send a drawing, get a quote

Email us the component, your target load or cycle rating and a monthly volume. An engineer replies within one business day.

Request a quote Back to catalogue