FS550-21 2.1m Self-Propelled Deep Tillage Cultivator

Powered by a 410 kW Dongfeng Cummins engine, the FS550-21 combines a 2.1 m working width, up to 500 mm tilling depth and six rotary auger assemblies. Unlike conventional tractor-mounted tine cultivators, it is a complete self-propelled machine with its own hydrostatic travel system and rubber-track undercarriage.

It is suitable for large-scale farmland reclamation, compacted soil treatment, deep tillage and land improvement projects where conventional shallow cultivation equipment cannot provide sufficient working depth.

500mm Deep Tillage for Compacted Soil

One of the main differences between the FS550-21 and conventional cultivators is its working depth.

The machine can reach a maximum tilling depth of 500 mm, allowing the rotary working system to operate considerably deeper than ordinary surface cultivation equipment.

Deep tillage can be useful where repeated agricultural machinery traffic or long-term cultivation has created compacted soil layers below the surface.

The FS550-21 can be used for:

● Deep soil loosening
● Breaking compacted soil layers
● Deep farmland preparation
● Land reclamation
● Improving deeply compacted agricultural ground
● Mixing and pulverizing soil at greater working depths

The actual operating depth should be selected according to soil conditions, moisture, required soil structure and project requirements.

Six Rotary Augers for Soil Loosening and Pulverizing

The FS550-21 uses six rotary auger assemblies as its main tillage device.

Rather than relying on conventional fixed tines or shanks, the rotary system works through the soil while the machine travels forward.

This design combines several operations in one working process:

● Penetrating deeper soil layers
● Loosening compacted ground
● Breaking larger soil structures
● Pulverizing and mixing soil
● Preparing the ground for subsequent agricultural operations

The maximum rotary speed reaches 506 rpm.

This rotary working principle is also why the FS550-21 should be classified as a self-propelled deep tillage cultivator rather than a conventional deep tine cultivator.

2.1m Working Width

The FS550-21 provides a 2100 mm working width.

This width offers a practical balance between working coverage and machine maneuverability, making the FS550-21 suitable for agricultural land, reclamation projects and sites where a larger 3.0 m machine may not be necessary.

For customers comparing HBXG models:

FS550-21: 2.1 m working width / 500 mm maximum tilling depth
FS770-30: 3.0 m working width / 700 mm maximum tilling depth

The FS550-21 is therefore the more compact option in the HBXG deep tillage cultivator range.

410kW Cummins Power for Deep Soil Working

The machine is powered by a Dongfeng Cummins QSZ13-C550-III diesel engine with:

● 410 kW rated power
● 1900 rpm rated speed
● 2300 N·m maximum torque
● 13 L displacement

Deep tillage requires significantly more power than ordinary shallow cultivation because the working mechanism must overcome soil resistance at greater depth.

The high-output engine provides the power required for both machine travel and the hydraulic rotary tillage system.

Hydrostatic Travel System

The FS550-21 uses a double-circuit electronically controlled hydrostatic travel system.

Travel speed can be continuously controlled from 0 to 5.5 km/h, allowing the operator to adjust forward speed according to soil resistance and required tillage depth.

Slower travel can be selected for more demanding deep tillage conditions, while working speed can be adjusted as ground conditions change.

The travel system includes:

● Double-circuit hydrostatic drive
● Electronic control
● Wet multi-disc braking
● Two-stage planetary final drive
● Maximum travel-system working pressure of 40 MPa

Rubber Track Undercarriage

The FS550-21 uses 450 mm rubber tracks rather than conventional agricultural tires.

The tracked undercarriage provides a large ground-contact area and is suitable for agricultural working conditions where traction and machine stability are important.

The undercarriage includes:

● 450 mm rubber tracks
● 2 carrier rollers per side
● 6 track rollers per side
● 1 idler per side
● 350 mm ground clearance

A rubber-track configuration also helps the machine operate on farmland and uneven ground while supporting the 11.6-ton operating weight.

Separate Hydraulic System for Deep Tillage

The machine uses dedicated hydraulic systems for travel, implement control and rotary tillage.

For the deep tillage system:

The high-flow hydraulic system supplies the rotary tillage mechanism independently from the machine's auxiliary implement circuit.

This allows the six rotary working assemblies to perform demanding deep-soil operations while the hydrostatic travel system controls machine movement.

Typical Applications

The FS550-21 is designed for large-scale agricultural and land-improvement work rather than normal garden cultivation.

Typical applications include:

Deep Farmland Tillage

Loosening soil below the normal shallow cultivation layer before crop establishment or farmland rehabilitation.

Compacted Soil Treatment

Breaking and loosening compacted agricultural soil caused by repeated equipment traffic or long-term farming operations.

Land Reclamation

Preparing previously unused, compacted or disturbed land for agricultural development.

Orchard and Plantation Land Preparation

Deep preparation of suitable open areas before new orchard, plantation or agricultural development projects.

Agricultural Soil Improvement

Deep loosening and pulverizing operations where conventional tractor-mounted cultivation equipment cannot achieve the required working depth.

When Should You Choose the FS550-21?

The FS550-21 is worth considering when your project requires:

● Up to 500 mm deep tillage
● Approximately 2.1 m working width
● Self-propelled operation
● Rubber-track mobility
● Rotary soil pulverizing instead of tine-only cultivation
● High power for compacted soil conditions
● Large-scale agricultural or land reclamation work

Before selecting the machine, we recommend providing information about the soil type, required tilling depth, working area, terrain conditions and expected operating environment.

Why Choose HBXG?

HBXG, Xuanhua Construction Machinery Development Co., Ltd., was founded in 1950 and has extensive experience in tracked heavy-equipment manufacturing.

The company's background in crawler undercarriages, hydraulic drive systems and heavy-duty machinery provides the engineering foundation for the FS550-21 self-propelled deep tillage platform.

For international projects, HBXG can provide technical consultation, machine selection and equipment support according to the required working conditions.