THOTH Hydraulics Insight
Engineering
moves things.
So does knowledge.
Field-tested insights on hydraulic motor selection, system design, and real-world applications — from engineers who build the hardware.
THOTH Hydraulics Insight is the technical publication of Ningbo Zhongyi Hydraulic Motor Co., Ltd. — a hydraulic motion specialist founded in 1971. Articles cover motor selection, system design, and field applications drawn from real engineering practice.
Official Website (en.zihyd.com)Just published
Latest from the engineering desk.
Sourcing Guide
Eight questions to ask your hydraulic motor supplier
Performance data, inspection, traceability, warranty, lead time and certification. What to ask before you qualify a supplier, and the documents behind each answer.
Read the guide →
Engineering Guide
Sizing a grain auger motor: six steps on the performance grid
Read →
Application Guide · BM3Y
Grain and feed truck auger: BM3Y direct drive
Read →Three areas, one focus:
hydraulic systems that work.
Case Studies
Real projects. Real decisions.
Application stories from the field — swing drives, winches, agricultural equipment, and more. What was selected, why, and what happened next.
Read case studies →
Engineering Guides
Selection frameworks that hold up in the field.
Technical guides on motor selection, back pressure, duty cycles, TCO, and system-level design — written for engineers, not catalogs.
Read guides →
Product Selection
The right motor for your application.
Overview of the THOTH / ZiHYD hydraulic motor range — orbital motors, radial piston, steering units, gearboxes, and winches.
Explore products →
1Motor under test
2Test console
Factory Tour · Ningbo plant
Walk the floorwith us.
Follow a THOTH motor through eight zones, from the R&D lab to the shipping dock. Every unit is performance tested before it ships, and every report is kept on file.
Take the factory tour →Product Selection
Start from your machine,
not a part number.
Machine-by-machine application guides built around real OEM configurations — plus product references for every model in the range.
57 guides · 20 products · 6 families
Gantry Tunnel Drilling System
Slew drive + motor · Mining & tunnelling
Grapple Carrier
360° rotator · Scrap & material handling
TMS03
Radial Piston · Shaft / Wheel
BMR
Orbital Motor · Geroler
ZCM
Transmission · Motor + Gearbox
BPBS
Steering Unit · Full-Hydraulic
Filter all guides by model, industry, or application — or browse product references by family.
All 57 selection guides →Monthly Newsletter
One issue.
No noise.
Technical content for hydraulic engineers and OEM procurement teams — real applications, selection frameworks, and field cases. No announcements. No promotions.
- Application case studies from real OEM projects
- Motor selection frameworks engineers actually use
- New product introductions — engineering and applications
One issue per month · Unsubscribe any time