Descripción
Agricultural Machinery / Lawn Care Series
HC-9.259 Lawn Mower Series Gearbox
High-torque right-angle transmission engineered for professional ride-on mowers and tractor-mounted cutting decks across UK and European agricultural markets.
30 HP Rated
540 RPM Input
14 kg Net Weight
Built for Demanding Grass Management Operations
The HC-9.259 is a purpose-designed right-angle gearbox developed specifically for the demands of professional lawn mowing and grass cutting applications. Whether fitted to compact ride-on mowers working on golf courses in Surrey, large estate cutting decks in the Scottish Highlands, or tractor-mounted finishing mowers servicing local authority parks in Yorkshire, this gearbox delivers consistent, reliable torque transfer under continuous duty cycles. Its 1.46:1 gear ratio paired with a 19/13 tooth count and Module 5.0 gearing ensures blade tip speed is optimised for clean, even cuts across varying grass conditions without overloading the drive train. The unit handles up to 30 HP at a rated input of 540 rpm, meeting the standard PTO speed found across virtually all modern agricultural and grounds maintenance tractors in the UK.
At just 14 kg net weight, the HC-9.259 keeps overall deck mass low, which translates directly into reduced soil compaction on soft ground and easier servicing in the field. The 1 3/8 Z6 0pticaxis input/output configuration is fully compatible with standard agricultural PTO shafts used throughout British and European markets, making retrofitting and replacement straightforward for machinery dealers and farm workshops alike.
Why the HC-9.259 Outperforms Standard Lawn Mower Gearboxes
Technical Advantages — Proven in the Field
Precision Helical Gear Cutting
Module 5.0 gearing with a 19/13 tooth configuration is CNC-hobbed to ISO quality standards, producing smooth, low-vibration transmission that protects both the gearbox and the connected mower deck structure over extended seasons of use.
High-Strength Cast Housing
The robust cast-iron housing resists the shock loads and debris impacts common in commercial grass cutting environments. It maintains precise gear alignment even after thousands of operating hours, preventing premature wear and the costly downtime that comes with misaligned drives.
Universal PTO Compatibility
The 1 3/8 Z6 spline interface is the most common standard across UK and European tractors from 18 HP compacts to full-size agricultural machines. This means the HC-9.259 can be fitted directly without adapters onto the vast majority of tractor models sold through British dealerships.
Lightweight Field-Service Design
Weighing only 14 kg, the HC-9.259 is light enough for one technician to handle during roadside or field-based replacement without lifting equipment. Combined with its standardised bolt pattern, replacement time on typical commercial mowing decks is under 45 minutes for experienced workshop staff.
Especificaciones técnicas
HC-9.259 Lawn Mower Series Gearbox — Complete Parameter Table
| Parámetro | Valor |
|---|---|
| Item | HC-9.259 |
| Relación de transmisión | 1.46 : 1 |
| Teeth (Drive / Driven) | 19 / 13 |
| Módulo | 5.0 |
| Potencia nominal | 30 HP |
| Rated Input Speed | 540 rpm |
| Input / Output Interface | 1 3/8 Z6 0pticaxis |
| Net Weight | 14 kg |
Dimensional Drawing
Working Principle, Materials and Application Scenarios
How the HC-9.259 Delivers Power to the Cutting Deck
⚙ Working Principle
Power enters the HC-9.259 through the 1 3/8 Z6 input shaft directly from the tractor PTO at 540 rpm. A pair of precision-cut helical bevel gears transmit this rotational energy through a 90-degree change in direction, driving the output shaft at the blade spindle. The 1.46:1 ratio means the output shaft turns at approximately 370 rpm, which is calculated to deliver the blade tip speed required for a clean, even cut on grass from 25 mm to 150 mm in height. Splash lubrication within the sealed housing keeps all gear and bearing surfaces continuously bathed in oil, eliminating the need for external grease nipples and reducing maintenance intervals significantly compared to older gearbox designs still common on British farms.
🔧 Materials & Construction
The gear set is produced from case-hardened alloy steel, heat-treated to achieve surface hardness in the range of HRC 58-62 at the tooth face, with a tough ductile core retained beneath. This combination resists pitting, spalling and impact fracture — the three most common failure modes in lawn mower gearboxes subjected to hard object strikes mid-cut. The housing is grey cast iron, selected for its excellent vibration damping properties and machinability to tight tolerances. Output shaft seals are dual-lip type rated for continuous operation in wet and muddy conditions, which is a realistic expectation in UK grounds maintenance work from September through to April.
🌿 Application Scenarios
In practice, the HC-9.259 is well suited for contractor-grade ride-on mowers handling between 5 and 50 acres per day, tractor-mounted rear or side discharge finishing decks used by local councils and estate managers across England and Wales, golf course fairway cutting machinery, and amenity grass management on motorway embankments and railway corridors. It also finds regular use on out-front mowers deployed by agricultural contractors servicing sport pitches and showgrounds throughout the UK summer season. Any application requiring a 30 HP right-angle gearbox on a 540 rpm PTO with a 1 3/8 Z6 interface is a natural fit for this unit.
Related Agricultural Gearbox Products
Explore other gearbox solutions from our agricultural range
HC-RV022 (X) Aluminum Box Series Gearbox
A lightweight aluminium-housing gearbox designed for compact agricultural and horticultural implements where weight saving and corrosion resistance are priorities. The HC-RV022 series is widely used on small rotary cultivators, seeder drives and fertiliser spreading equipment across UK smallholdings.
HC-RV010 Aluminum Box Series Gearbox
The HC-RV010 is an entry-level aluminium gearbox offering excellent value for light-duty applications such as small rotary brush cutters, garden reel mowers and orchard grass management equipment. Popular as an OEM component with several established UK machinery manufacturers based in the Midlands.
Customer Success Case
Real-World Performance in UK Grounds Maintenance
Greenway Estate Services Ltd, Cheshire — Fleet Gearbox Replacement Programme
Greenway Estate Services operates a fleet of 18 tractor-mounted finishing mowers across three championship golf courses in Cheshire and greater Manchester. In early spring 2024, their procurement manager contacted us after experiencing repeated gearbox failures on two competing brands — both rated at 30 HP but failing at the output shaft seals within a single season of wet-weather operation. We supplied 24 HC-9.259 units across their mower fleet, including six spare units for workshop inventory. Following one complete mowing season spanning March to October 2024, covering approximately 2,200 machine hours across all units, not a single seal failure or gear-set issue was reported. Greenway’s head groundsman noted that the smooth engagement and lower vibration characteristics of the HC-9.259 also improved cut quality on the fairways compared to their previous gearbox supplier. A follow-on order for an additional 8 units was placed in November 2024 to expand the programme to a fourth course.
★★★★★
“We replaced six worn gearboxes on our tractor decks with HC-9.259 units before the season. Twelve months later, all six are still running perfectly. Delivery to our depot in Lincolnshire was faster than expected. Very happy with the whole experience.”
— Thomas R., Machinery Manager
Contratista agrícola, Lincolnshire, Reino Unido
★★★★★
“We are an OEM manufacturer of professional ride-on mowers near Birmingham. After trialling the HC-9.259 across a production batch of 30 machines, we have now specified it as our standard gearbox going forward. The dimensional drawings and technical data provided made engineering integration very straightforward.”
— David K., Engineering Director
OEM Manufacturer, West Midlands, UK
★★★★★
“I manage grounds maintenance for three large country house hotels in Yorkshire and the Scottish Borders. The HC-9.259 replaced a French-branded unit that kept leaking oil on our manicured lawns — an obvious problem in a hospitality setting. No leaks, no noise, no drama. Would recommend to any grounds team needing a dependable mowing gearbox.”
— Fiona M., Head Groundsperson
Hospitality Estates Group, Yorkshire & Borders, UK
Our Manufacturing Facility & Custom Gearbox Capabilities
Precision Production — From Standard to Bespoke
Our production facility operates across dedicated gear-cutting, heat treatment, assembly and quality control departments. All gear hobbing is performed on CNC gear cutting machines maintaining DIN 8 or better quality grades. Hardness testing and gear tooth profile inspection are carried out in-house at multiple production stages, not just on final assemblies. This rigorous process is the reason why field failure rates on our agricultural gearboxes remain consistently below industry average across all UK export orders.
Beyond standard catalogue products, we offer a comprehensive custom manufacturing service. UK machinery manufacturers, OEM deck builders and specialist agricultural equipment integrators regularly commission modifications including altered gear ratios, non-standard shaft diameters, custom flange bolt patterns, modified centre distances, and different housing materials. Custom shaft seal specifications, oil port relocation and modified input interface dimensions are all achievable within our standard production capabilities. Prototype lead times start at 4 to 6 weeks from approved drawings, with production batches typically available within 8 to 10 weeks. All custom orders are supported by full dimensional inspection reports and test-run certificates on request.
Preguntas frecuentes
Lawn Mower Gearbox — UK Buyer Guide
What is the best lawn mower gearbox supplier in the UK for a tractor-mounted finishing deck running at 540 rpm?
For a tractor-mounted finishing deck running at 540 rpm PTO speed in the UK, the HC-9.259 lawn mower series gearbox is a well-matched solution. It is rated to 30 HP, uses the standard 1 3/8 Z6 interface common across UK tractors, and is available for direct international export with short lead times. Many UK grounds maintenance contractors and OEM deck builders have specified this unit as their primary gearbox across commercial mowing fleets.
How much does a 30 HP right-angle lawn mower gearbox cost when ordering from a UK agricultural machinery supplier?
Pricing for the HC-9.259 30 HP lawn mower gearbox depends on order quantity, any customisation requirements, and current shipping rates to your UK location. We supply to individual farm workshops, OEM manufacturers and dealer parts departments, with pricing scaled accordingly. To receive an accurate, no-obligation price for your specific requirements, please contact our team directly by email and include the quantity needed, your delivery postcode, and any technical specifications you need to confirm.
Which lawn mower gearbox is compatible with a 1 3/8 Z6 PTO shaft on a compact tractor used for golf course maintenance in England?
The HC-9.259 is directly compatible with the 1 3/8 Z6 PTO interface, which is the most common spline standard on compact and mid-range tractors used for golf course fairway and rough maintenance throughout England. Its 540 rpm rated input matches standard PTO output on virtually all tractors in this application class. No adapter shaft or custom coupling is required for straightforward bolt-on replacement.
Where can I get a fast quote for a lawn mower series gearbox with a 1.46 ratio for an estate grounds management team in Yorkshire?
You can request a quote directly by emailing our sales team at [email protected]. Please state that you require the HC-9.259 with a 1.46:1 ratio and include your required quantity and delivery address in Yorkshire. Our team typically responds within one working day and can provide a proforma invoice with DDP or DAP delivery options to UK destinations.
What gear ratio do I need on a lawn mower gearbox when my tractor PTO runs at 540 rpm and I want good blade cutting speed for amenity grass in the UK?
For amenity and professional finishing mowing applications using a 540 rpm PTO, a gear ratio in the range of 1.4:1 to 1.5:1 is generally considered the most practical for achieving the blade tip speed required for clean, even cuts on maintained grass swards. The HC-9.259 uses a 1.46:1 ratio, delivering approximately 370 rpm at the output shaft — a figure that is well-established in UK amenity horticulture and grounds maintenance machinery design for decks in the 1.5 m to 3.0 m cutting width range.
How long does delivery take when ordering an HC-9.259 lawn mower gearbox from this supplier to a farm workshop in Scotland or Northern England?
Standard delivery timescales for in-stock HC-9.259 units to UK addresses, including Scotland and Northern England, typically range from 7 to 14 working days when shipped by standard air freight. Express options can reduce this to 3 to 5 working days. If you are ordering for a specific maintenance window or pre-season rebuild programme, we recommend confirming stock availability and your preferred delivery window directly with our sales team at the time of order placement.
Ready to Source the HC-9.259 for Your UK Operation?
Contact our technical sales team for pricing, stock availability and custom specifications.
Editado por gzl
