SIP classifies its mowing and grassland harvesting machines into three main lines: ALP/AGILE, ROBUST, and HD/HEAVY-DUTY. SIP Machine Lines responds to different user needs. The ALP/AGILE line is intended for mountain, hilly, and smaller farms. The ROBUST line is best suited to medium-sized and large farms that need reliable machines for everyday work. The HD line is designed for the largest users, large agricultural enterprises, and professional contractors, where large working widths, high performance, and maximum productivity are key.
SIP machine lines are therefore designed for different types of users. The ALP line is primarily intended for mountain and smaller farms, where low weight, agility, and safe operation on slopes are essential. The ROBUST line is designed for medium-sized and large farms that need reliable, durable, and efficient machines for everyday work. The HD line has been developed for the largest users, professional contractors, and the most demanding conditions, where high performance, large working width, and maximum productivity matter most.
Why SIP Machine Lines?
SIP machine lines are designed to suit different user types, working conditions, and expected output. They are intended for users who need the right combination of safety, agility, working width, robustness, and productivity when harvesting grassland.
As a grassland harvesting specialist, SIP develops machines for different agricultural segments: from mountain farms and smaller areas to medium-sized farms and the largest agricultural enterprises and agricultural service providers. This division makes it easier for users to choose the right machine based on terrain, field size, tractor power, intensity of use, and required forage quality.
The three main SIP machine lines are:
- ALP/AGILE line – lightweight, compact, and agile machines for steep terrain, smaller farms, and use with smaller tractors.
- ROBUST line – durable and efficient machines for medium-sized and large farms, as well as everyday professional use.
- HD/HEAVY-DUTY line – powerful machines with large working widths for the largest users, large areas, and intensive use.
SIP Lines by User Type and Key Benefits
| SIP line | Type of users – who is this line best suited for? | Key benefits |
|---|---|---|
| ALP/AGILE line | Mountain farms, hilly farms, smaller farms, and users with fragmented grassland areas | Lightweight and compact construction; good agility on smaller plots; stability when working on steep terrain; suitable for smaller tractors; reduced soil compaction; easy operation; high-quality and clean forage harvesting. |
| ROBUST line | Medium-sized farms, large farms, users who need machines for regular mowing, tedding, raking, and grassland harvesting; farms that want higher productivity but do not yet need the highest HD class | Durable and reliable construction; high working performance; practical operation; good balance between performance and investment; easy maintenance; high-quality and clean forage harvesting. |
| HD line | The largest farms, professional contractors, and users who work on large areas and need maximum performance in mowing, tedding, raking, and forage collection | Largest working widths; high daily output; robust design for intensive use; reliable operation in demanding conditions; optimisation of time, energy, and number of passes; high-quality and clean forage harvesting. |
Which SIP Line Is Suitable for Which User?
The quickest way to choose is as follows: if you work on steep terrain or smaller, fragmented plots, choose ALP/AGILE line. If you need a reliable machine for regular work on larger grassland areas, the ROBUST line is the most suitable choice. If you work on very large areas or provide services for other farms, the HD line is the right choice.
| Type of user | Most suitable SIP line | Why? |
|---|---|---|
| Mountain and hilly farms | ALP/AGILE | Low weight, agility, stability and safe work on slopes |
| Smaller farms | ALP/AGILE | Compact machines, easy operation and suitability for smaller tractors |
| Farms with fragmented plots | ALP/AGILE | Good manoeuvrability, lower weight and easier handling |
| Medium-sized farms | ROBUST | Reliability, durable construction and good working performance |
| Large farms and large agricultural enterprises | ROBUST or HD | Balanced combination of productivity, durability and practical use |
| Professional contractors | ROBUST or HD | Large working widths, intensive use and high daily productivity |
ALP/AGILE Line: For Mountain, Hilly and Smaller Farms
The ALP line includes lightweight, compact, and agile machines designed for work on steep terrain, fragmented plots, and farms that also use lower-power tractors. This line focuses on safety, stability, low weight, and easy operation.
These machines are intended for users who need reliable mechanisation for demanding terrain, where excessive machine weight or reduced agility can quickly become a limitation. The lightweight design means reduced soil compaction, better control on slopes, and more economical work. At the same time, the machines maintain high forage quality by enabling a clean cut, gentle tedding, and even raking.
The ALP line includes different types of forage harvesting machines, including DISC ALP mowers, SPIDER ALP tedders, STAR ALP rakes, AIR ALP pick-up rakes, FAVORIT belt rakes/tedders, and ORION ALP manure spreaders.



ROBUST Line: For Medium-Sized and Large Farms
The ROBUST line is intended for medium-sized and large farms that need durable, efficient, and reliable machines for regular work on larger areas. These machines combine strong construction, practical use, easy maintenance, and high working performance.
This line is suitable for users looking for a good balance between performance, durability, and cost efficiency. ROBUST machines are intended for farms where machinery is used frequently and must deliver reliable results in mowing, tedding, raking, swath collection or organic manure spreading.
This line includes a wide range of SILVERCUT DISC ROBUST disc mowers, SPIDER ROBUST tedders, STAR ROBUST rakes, AIR pick-up rakes, and ORION ROBUST manure spreaders. The ROBUST line is therefore the most universal choice for farms that need higher productivity but do not necessarily require the largest working widths of the HD class.



HD/HEAVY-DUTY Line: For the Largest Users and Service Providers
The HD line has been developed for large farms, professional contractors, and the most demanding grassland harvesting conditions. These are machines for intensive use, large areas, and users who need to complete as much work as possible in a short period of time.
The main characteristics of the HD line are large working width, robust construction, high productivity, and reliable operation even in difficult conditions. This line is intended for users for whom daily output, time efficiency, and forage quality are key success factors.
Typical representatives of the HD line include large mowing combinations DISC HD, powerful SPIDER HD tedders, four-rotor STAR HD rakes, and AIR pick-up rakes. The HD line is the right choice for users who need maximum performance in mowing, tedding, raking, and preparing high-quality forage on large areas.



Different Needs of Modern Agriculture
SIP machine lines are designed to cover the different needs of modern agriculture. From mountain farms, where safety and agility matter most, to large agricultural enterprises and contractors, where high daily productivity is essential, SIP offers clearly defined solutions for mowing and grassland harvesting.
ALP/AGILE, ROBUST, and HD lines are not just three product classes, but three answers to different user challenges. The right line means better adaptation to terrain, more efficient work, higher-quality forage and a more reliable long-term investment.
Contact us and find the right machine for you!
Take the advantage of SIP’s 3-year guarantee without any acreage limitations. Send us an enquiry or find your nearest dealer and we will be happy to advise you and find the best solution for your needs.
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Author: SIP Lab – Grassland Harvesting Specialist
Key Takeaways
- SIP classifies its mowing and grassland harvesting machines into three lines: ALP/AGILE, ROBUST, and HD/HEAVY-DUTY.
- The ALP/AGILE line is lightweight and designed for mountain and smaller farms, while the ROBUST line suits medium to large farms.
- The HD line caters to the largest users and contractors needing maximum performance and productivity on extensive areas.
- Different SIP lines meet various user needs, including safety, durability, and efficient operation in harvesting grassland.
- Users can choose the right SIP line based on terrain, field size, and specific agricultural requirements.
FAQ: Frequently Asked Questions About SIP Machine Lines
For mountain and hilly farms, the ALP/AGILE line is the most suitable choice because it includes lightweight, compact and agile machines designed for safe operation on steep terrain.
For medium-sized farms, the ROBUST line is the most suitable choice, as it combines durable construction, strong working performance, reliability and practical use.
For professional contractors, the HD line is the most suitable choice because it offers large working widths, high productivity and intensive use on large areas.
The ROBUST line is designed for reliable everyday use on medium-sized and large farms. The HD line is intended for the most demanding users who need the largest working widths, maximum output and a robust design for intensive work.
The ALP/AGILE line is lighter, more compact and better suited to steep terrain, smaller tractors and fragmented fields. The ROBUST line is more powerful and better suited to larger areas and regular work on medium-sized and large farms.
Yes. A farm can combine different lines depending on the specific task, terrain and field size. For example, it can use ALP/AGILE machines on steeper areas and ROBUST or HD machines on larger flat areas.










