Aluminum window & door machinery — since 1999

Company

27 years of building the machines that build windows.

Shandong Qianzheng CNC Machinery Co., Ltd. started in 1999 as a precision machining supplier to window-machinery builders. Today we design, machine and assemble complete aluminum door & window production equipment in Zouping — and service it in more than 60 countries.

QianZheng CNC JMD

The company

A machine builder that began as a parts maker.

Our first customers were the companies building window machines. Making their spindles, columns and fixtures taught us where tolerance is actually lost — and that lesson still shapes every saw, crimper and machining centre we ship.

In 2013 we built our first automatic aluminum profile cutting machine. It is now in its third generation and is one of the most widely used aluminum cutting centres in China. A year later we delivered the country’s first domestically built aluminum-clad wood window production line.

We remain a manufacturer, not a trader: casting, machining, assembly, wiring and testing happen inside our own 200,000 m² plant, with 130+ sets of processing equipment and a team of 300.

Why customers stay

Milestones

A manufacturing record, not a marketing one.

  1. 1999 Founded in Zouping Precision machined parts for China’s window-machinery builders.
  2. 2012 Top-10 supplier Recognised among China’s ten largest aluminum window & door machine suppliers.
  3. 2013 First automatic cutting centre LJGS series launched — now in its third generation.
  4. 2014 Aluminum-clad wood line China’s first domestically built wood-window production line.
  5. 2026 Complete line supplier 200,000 m² plant, 300 staff, installed projects in 60+ countries.
300 Employees, including 45+ graduate engineers
130+ CNC machining, grinding and EDM sets in-house
200k m² Production base with four workshops
60+ Export markets with installed equipment

R&D

Two research centres, one engineering team.

Aluminum and wood-clad systems behave differently under load. We staff and equip them separately, then share the results.

Aluminum machine R&D centre

Aluminum machine R&D centre

Spindle rigidity, servo tuning and thermal behaviour of long-profile cutting — tested against production profiles, not test bars.

Wood machine R&D centre

Wood machine R&D centre

Joint projects with Shandong University of Technology on tooling life and surface finish for aluminum-clad wood windows.

Free equipment proposal

Tell us what you produce. We design the line around it.

Machine selection, factory layout and capacity planning from engineers who have commissioned 60+ country projects.

Chat on WhatsApp