Beschreibung
HC-1ZS-380 Lawn Mower Series Gearbox
Heavy-duty agricultural gearbox engineered for commercial lawn mowers, PTO-driven implements and turf management machinery — built to the rigorous demands of UK farming and grounds maintenance professionals.
100 HP Rated
540 rpm Input
Spline I/O
Request a Competitive Quote
UK stock available. Custom ratios, shaft configurations and OEM options on request. Our engineering team responds within one business day.
Also available in our aluminium box range:
• HC-RV022 (X) Aluminum Box Series Gearbox
• HC-RV010 Aluminum Box Series Gearbox
What Is the HC-1ZS-380 Agricultural Gearbox?
The HC-1ZS-380 is a professional-grade lawn mower series agricultural gearbox developed for demanding rotary cutting, flail mowing and turf management applications across the United Kingdom and beyond. Transmitting up to 100 HP at a 1:1.24 gear ratio with a standard 540 rpm PTO input, this gearbox is a workhorse trusted by contractors, estate managers and agricultural machinery dealers who require consistent, fatigue-free performance across varied terrain and heavy seasonal workloads.
Designed around a spline input and output interface, the HC-1ZS-380 agricultural gearbox integrates directly with most standard PTO drive configurations without adapter plates or bespoke machining. The 7.0 module gear set — configured on a 21/17/17/17 tooth arrangement — delivers smooth, low-noise power transfer with inherently high torque capacity, making it equally at home on a compact county tractor and on wide-area commercial mowers covering hundreds of acres per season. Weighing in at a manageable 42.5 kg net, it balances structural robustness with practical handling during installation and service intervals.
What separates this agricultural gearbox from lighter-duty units on the UK market is the combination of heat-treated alloy steel gears, precision-bored housings and pre-packed, high-load bearings. Together they extend service life in the kind of abrasive, wet conditions that are characteristic of British field and parkland environments — clay-heavy soils, long dewy grass, and near-constant wet-weather operation during spring and autumn cutting seasons.
Why UK Operators Choose This Gearbox
Heat-Treated Alloy Steel Gears
Case-hardened and precision-ground gear teeth resist wear under the shock loads generated by uneven turf and hidden field debris — a real-world concern on UK farmland.
IP-Rated Sealed Housing
Precision-cast housing with high-integrity seals keeps moisture and fine grass debris out, protecting internals throughout the British wet season and during pressure-washing.
Direct PTO Compatibility
Spline input shaft matches standard 540 rpm Category II PTO specifications used across the UK tractor fleet, reducing fitment time and eliminating custom adapters in most installations.
High Power Rating
A 100 HP continuous power rating provides genuine headroom for high-output cutting schedules without thermal stress, making this agricultural gearbox suitable for commercial and estate-scale operations.
OEM & Replacement Ready
Available as a direct OEM replacement for worn units on major mower brands and as a new-build component for UK machinery manufacturers and agricultural engineering workshops.
Long Maintenance Intervals
Pre-lubricated bearings and positive oil retention reduce routine maintenance frequency, cutting downtime during peak cutting windows when every operational hour counts.
Technische Spezifikationen
| Parameter | Spezifikation |
|---|---|
| Item | HC-1ZS-380 |
| Verhältnis | 1:1.24 |
| Zähne | 21 / 17 / 17 / 17 |
| Modul | 7.0 |
| Power (HP) | 100 |
| Nenneingangsgeschwindigkeit | 540 rpm |
| Input / Output Description | Spline |
| Weight (N.W.) | 42.5 kg |
HC-1ZS-380 Engineering Drawing & Dimensional Reference
How It Works & Where It’s Used
The HC-1ZS-380 agricultural gearbox operates on a parallel-shaft bevel gear principle, accepting rotational power from the tractor PTO at 540 rpm through its spline input shaft and redistributing it at the 1:1.24 ratio to the cutting blade assembly. The 7.0 module, 4-gear tooth arrangement — 21/17/17/17 — achieves near-unity speed multiplication while generating excellent torque consistency across the full 100 HP power envelope. Internal oil splash lubrication, combined with sealed double-row tapered roller bearings at each shaft end, ensures the gear mesh remains well-coated even during sustained high-load mowing runs on inclines or in heavy-stemmed grassland.
The housing is precision-cast in high-strength nodular iron and stress-relieved before machining, which keeps shaft alignment tolerances tight throughout years of high-vibration service. An inspection port and oil drain plug are accessible without removing the unit from the machine, reducing the time needed for scheduled servicing on-farm or in an agricultural engineering workshop.
🌿 Rotary Lawn Mowers
Wide-area and county mowers for verge and amenity maintenance across England, Scotland and Wales.
🏭 Flail Mulchers
Ideal for rear-mounted flail heads on compact and mid-range tractors used in orchard and vineyard management.
📚 Sports Turf Equipment
Groundsman’s machines for football pitches, golf courses and racecourses requiring fine, consistent cut quality.
🚗 Roadside Verge Cutters
Contractor-grade units operating from council and highways maintenance vehicles on high-cycle cutting programmes.
🏠 Estate & Country Park Management
Large private estates and National Trust properties with high seasonal mowing demand across mixed terrain types.
Kundenerfolgsgeschichte
Greenfield Grounds Maintenance Ltd, Lincolnshire, UK
A mid-sized amenity and agricultural contracting company operating across Lincolnshire and Nottinghamshire came to us in 2023 after experiencing repeated premature failure of a competitor’s gearbox fitted to their fleet of four wide-area rotary mowers. Seasonal workload peaks — particularly during the May-to-July cutting window — were causing overheating and bearing seizure after fewer than 200 operating hours.
We supplied HC-1ZS-380 agricultural gearboxes as direct replacements on all four machines. After two full cutting seasons, none of the units have required unscheduled intervention. The company’s fleet manager reported that scheduled oil checks at 250 hours revealed minimal wear debris, confirming the gear mesh and bearing condition remain well within acceptable limits. Downtime on their mowing contracts dropped by an estimated 35% compared with the previous season.
“The difference in build quality was immediately obvious when we opened the boxes. These are proper agricultural gearboxes — the kind you’d expect on a machine costing twice the price. Two seasons in and we haven’t touched them.” — Fleet Manager, Greenfield Grounds Maintenance Ltd
“We’ve run HC-1ZS-380 gearboxes on three of our county mower trailers for going on three years now. Reliability has been outstanding — no leaks, no noise, no drama. Our fitter says they’re the easiest to service he’s seen at this power rating.”
★★★★★ — Robert H., Agricultural Contractor, Yorkshire, UK
“Ordered six units for a new build project — golf course fairway mowers. The technical team helped us confirm the spline spec before ordering. Delivery to our workshop in Scotland was fast and every unit checked out perfectly on arrival.”
★★★★★ — James M., OEM Machinery Builder, Perth, Scotland
“We stock these as a replacement part for several popular mower models. Our customers come back specifically asking for this gearbox after upgrading from cheaper alternatives. The price-to-life ratio is simply better than anything else we’ve stocked.”
★★★★★ — Sarah T., Agricultural Parts Distributor, Shropshire, UK
Related Agricultural Gearbox Products
For lighter-duty applications or systems requiring compact aluminium housings, our HC-RV series offers proven reliability in a reduced footprint. Both models below are available for UK delivery with fast lead times.
Fertigung & Kundenspezifische Entwicklung
Our dedicated agricultural gearbox manufacturing facility operates a full in-house production chain — from raw gear blank forging through CNC hobbing, heat treatment, precision grinding and final assembly — under a single quality management system. This vertical integration gives us precise control over every critical tolerance in the HC-1ZS-380 and the flexibility to execute custom engineering modifications that off-the-shelf suppliers simply cannot match.
Our product customisation services for UK agricultural machinery builders and contractors include: non-standard gear ratios to meet specific blade speed or output shaft RPM requirements; alternative shaft dimensions and keyway configurations; custom mounting flange patterns to fit bespoke machine frames; modified housing materials for weight-critical applications; and private-label branding for OEM customers who require their own part numbering. Minimum order quantities for custom builds are negotiable depending on specification complexity and lead time.
Häufig gestellte Fragen
Ready to Source the HC-1ZS-380 Agricultural Gearbox?
UK B2B enquiries welcome. Trade pricing, volume discounts and OEM custom orders available. Contact our technical sales team today.
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