Zhejiang Precision Gearbox
☰
HomeProductsCasesAboutContact
中文Get Selection Support and a Quote
Zhejiang Precision Gearbox

Products

Planetary Gearboxes and Worm Gear Reducers

Compare six series side by side by torque, ratio, precision grade and mounting style to find the exact model for your packaging line drive position. Precision graded to ISO 1328, each unit ships with backlash and noise test records for easy quoting and acceptance.

All torque and ratio figures are output-side values; the input can be fitted with an electric motor or servo shaft.

Download spec sheet
精密行星齿轮箱（P 系列）

Precision Planetary Gearbox (P Series)

High-precision planetary gearboxes for main drives on filling, labelling and conveyor lines

Output torque range
10–1,000 N·m (single stage 3–5 stages)
Ratio range
3:1 – 100:1, multi-stage up to 200:1
Transmission accuracy
ISO 1328 grade 6 or better, ground and profile-shifted gears
Backlash
≤ 3 arcmin (optional precision grade)
蜗轮蜗杆减速机（W 系列）

Worm Gear Reducer (W Series)

Self-locking worm gearboxes for high torque intermittent duties such as case erecting and palletizing

Output torque range
50–2,500 N·m
Ratio range
10:1 – 80:1
Worm wheel tooth form
Involute worm wheel, cast bronze gear rim (cast iron optional)
Housing and heat treatment
Ductile iron housing, 20CrMnTi carburized and hardened worm
包装线专用传动单元（模块化定制）

Packaging Line Drive Unit (Modular Custom)

Complete drive modules combined to match conveyor, hold-down and filling cycle requirements

Available modules
Geared motor, brake motor, encoder, torque limiter
Output torque range
10–800 N·m per module
Ratio combinations
3:1 – 150:1, stackable
Precision and backlash
Configured per drive position grade, backlash record shipped with goods

Compliance and Precision Criteria for EU-Exported Gearboxes

To enter a German packaging machine line, a planetary or worm gear reducer must answer two questions: can it ship with the CE marking of the host machine, and which accuracy standard defines its precision? The factory runs an ISO 9001 quality system, applies ISO 1328 to gear accuracy and EN 1245 to worm gear sets

CE Machinery Directive 2006/42/EC
When a reducer ships to the EU as a safety component of a packaging machine, it normally falls under this directive. Applicability and its relation to other directives are confirmed per product and contract; the factory issues an assembly declaration.
ISO 9001 Quality System
Covers gear machining, worm set assembly, final inspection and packing. Lead time and batch traceability follow the system documents; precision and noise records are archived per batch.
ISO 1328 Gear Accuracy Grades
Planetary gearbox gear sets are graded to ISO 1328, commonly grade 6–8. The grade depends on ratio, torque and model, and is quoted model by model.
EN 1245 Worm Gear Reducer Accuracy
Worm gear sets are assessed to EN 1245 for transmission accuracy; single-stage ratio range and tooth contact pattern can be given per model.
Low Backlash Planetary Reducer Assembly and Measured Records
For the low backlash planetary reducer that buyers specify most often: a target backlash is given per model, then measured and recorded on every unit after assembly and supplied with the goods.
Noise Test Records and Delivery Documents
No-load and loaded noise measurements are provided with the shipping documents, together with the packing list and inspection records; test conditions and measurement positions are stated in the record.

Common market-entry requirements; applicability and documentation are subject to the destination country's current regulations and mutual confirmation.

Send us ratio, torque and mounting dimensions — we quote by precision class

Provide footprint, load torque, target ratio and accuracy class, plus drawings or your existing reducer samples. Selection advice and lead-time confirmation within 24 hours.

Request a quote