Why QY QJY Hard Tooth Reducers Are Top Choice for Site Cranes

The QY series is a three‑stage hardened cylindrical gear reducer, offered in two mounting configurations: the QYS three‑support type and QYD base‑mounted variant. Boasting a streamlined mechanical layout, it enables quick field installation and delivers consistent load‑bearing performance. Well‑suited for medium‑and‑small tonnage overhead and gantry cranes, this unit serves general lifting tasks inside workshops. It stands out for cost‑efficiency and straightforward maintenance work.

As an upgraded iteration of the QY range, the QJY series features larger‑module gears to achieve superior load capacity. Its gears go through precision grinding procedures, bringing down operational noise while enhancing wear resistance. This reducer fits heavy‑duty large‑tonnage cranes under frequent continuous‑cycle conditions, with extended service life and enhanced operational reliability.

Shared merits of both models lie in high‑strength alloy gears subject to quenching and tempering treatments. These processes grant high surface hardness and solid anti‑fatigue properties. Rigid housings resist structural deformation. Both units are engineered to match the intermittent, frequent start‑stop working cycles typical of lifting machinery, making them mainstream essential drive components across industrial hoisting applications.