
Aluminum machine R&D centre
Spindle rigidity, servo tuning and thermal behaviour of long-profile cutting — tested against production profiles, not test bars.
Company
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.
The company
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.
Milestones
R&D
Aluminum and wood-clad systems behave differently under load. We staff and equip them separately, then share the results.

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

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




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