Hydraulic grader blades

You’ll be able to tackle any job when you choose a multi-purpose Jykevä. The JYKEVÄ HYDRO line offers the right work machine for every job. Four different beam options and, depending on the model, four different working widths. With the wide variety of attachments available, the operator can perform earthmoving and snow clearance jobs, level fields, grade roads, clear land areas, scalp forests, subsoil and put in underground drainage.

The board is mounted to the beam with a unique quick-mount fastener. This makes it easy and fast to switch out the board with attachments. On all models, the board is rotated from its transport position to the working position with a heavy-duty hydraulic cylinder made in Finland. The cylinder is fitted with a lock valve, which protects the tractor hydraulics from pressure surges when the board strikes an obstacle. On the flagship model H30, the beam can also be hydraulically folded laterally.

One frame, multiple machines.

Subsoiler

Stone rake

Drain plow

Beam extension

Attachments

Models

JYKEVÄ H10

Technical specifications

– Working width: 250 cm
– Board height: 600 mm
– Body beam size: 200 x 200 x 8 mm
– Axis of rotation: 80 mm
– Rotary actuator 80/45 mm, tubing wall thickness 7.5 mm
– Wear blade: welded 10 x 100 mm smooth spring steel
– Weight: 540 kg
– Tractor recommendation: 70-100 hp

Accessories

– JYV01 support wheel set (also requires JYV01K installation kit)
– JYV144 pressure relief valve (to be installed in place of the lock valve)

Attachments to be installed in place of the board

– JYV07 drain plow
– JYV11H2 stone rake 2 tines
– JYV11H4 stone rake 4 tines
– JYV10H4 subsoiler 4 tines

JYKEVÄ H15

Technical specifications

– Working width alternatives: 250 cm / 270 cm / 300 cm
– Board height: 650 mm
– Body beam size: 200 x 200 x 8 mm
– Axis of rotation: 80 mm
– Rotary actuator 100/50 mm, tubing wall thickness 7.5 mm
– Wear blade: bolt-mounted 10 x 240 mm perforated steel
– Weight: 620 kg / 640 kg / 670 kg
– Tractor recommendation: 70-100 hp
– Mounts for support wheels and snow wings/end plates pre-fitted to the board

Accessories

– JYV01 support wheel set
– JYV02L end plate left
– JYV02R end plate right
– JYV03 snow wing right
– JYV144 pressure relief valve (to be installed in place of the lock valve)

Attachments to be installed in place of the board

– JYV07 drain plow
– JYV11H2 stone rake 2 tines
– JYV11H4 stone rake 4 tines
– JYV10H4 subsoiler 4 tines

JYKEVÄ H20

Technical specifications

– Working width alternatives: 250 cm / 270 cm / 300 cm / 350 cm
– Board height: 650 mm
– Body beam size: 300 x 200 x 10 mm
– Axis of rotation: 125 mm
– Rotary actuator 100/50 mm, tubing wall thickness 7.5 mm
– Wear blade: bolt-mounted 10 x 240 mm perforated steel
– Weight: 720 kg/ 740 kg / 770 kg / 820 kg
– Tractor recommendation: 100–250 hp
– Mounts for support wheels and snow wings/end plates pre-fitted to the board

Accessories

– JYV01 support wheel set
– JYV02L end plate left
– JYV02R end plate right
– JYV03 snow wing right
– JYV144 pressure relief valve (to be installed in place of the lock valve)

Attachments to be installed in place of the board

– JYV07 drain plow
– JYV11H2 stone rake 2 tines
– JYV11H4 stone rake 4 tines
– JYV10H4 subsoiler 4 tines
– JYV04 beam extension (bolt-mounted on a flange welded to the beam)

JYKEVÄ H30

Technical specifications

– Working width alternatives: 250 cm / 270 cm / 300 cm / 350 cm
– Board height: 650 mm
– Body beam size: 300 x 200 x 10 mm
– Axis of rotation: 125 mm
– Rotary actuator 100/50 mm, tubing wall thickness 7.5 mm
– Beam folding cylinder: 80/45 mm, tubing wall thickness 7.5 mm
– Wear blade: bolt-mounted 10 x 240 mm perforated steel
– Weight: 800 kg/ 820 kg / 850 kg / 900 kg
– Tractor recommendation: 100–250 hp
– Mounts for support wheels and snow wings/end plates on the board

Accessories

– JYV01 support wheel set
– JYV02L end plate left
– JYV02R end plate right
– JYV03 snow wing right
– JYV144 pressure relief valve (to be installed in place of the lock valve)

Attachments to be installed in place of the board

– JYV07 drain plow
– JYV11H2 stone rake 2 tines
– JYV11H4 stone rake 4 tines
– JYV10H4 subsoiler 4 tines
– JYV04 beam extension (bolt-mounted on a flange welded to the beam)

Attachments

SUBSOILER

The subsoiler solves the problem of soil compaction. It breaks up the compacted hardpan that forms over years below the plowing depth, thus essentially compromising soil arability and preventing surface water from reaching underground drainage.

The JYKEVÄ subsoiler can reach a depth of up to 60-70 cm, which effectively breaks up the hardpan. The subsoiler is 3 metres in width. Thanks to the bolt-mounted tine suspension, the tines are detachable and can be adjusted to any position. The tine breakaway bolt prevents damage when the tine runs into an obstacle.

Support wheel mounts available as an accessory. The subsoiler uses the same JYV01 support wheel set as for the graders.
The subsoiler is available with 4 and 6 tines.

STONE RAKE

The JYKEVÄ stone rake is an effective tool for such applications as forest scalping and clearing stones, stumps and brush. The stone rake can be rotated from its transport position into its working position.

Stone rakes are available with 2 and 4 tines. The tines are 75 cm in length.

DRAIN PLOW

The JYKEVÄ drain plow helps to prevent standing water problems caused by summer and autumn rains, allowing you to effectively and economically direct water from furrows and sources into drainage and open ditches. The drain plow can also be used to install drainpipes in the ground.

The drain plow has become a very popular choice, particularly for fields with old underground drainage, where the drainage works well, but the surface of the field has become compacted, thus preventing water from permeating the soil. Running a drain plow crosswise over old underground drainage helps harmful standing surface water permeate the compacted layer of soil, thus directing it to the underground drainage.

Technical specifications

Max. working depth: 75 cm
Thanks to the sharpened cutting blade, there is little tractive resistance – approx. 50 hp is all that is needed to pull the unit
Breakaway bolt (18 mm) on the blade prevents damage to the tractor and plow
Blade 20 mmwear-resistant steel
Ball hitch 75 mm, with a coupler for fastening a drainpipe

BEAM EXTENSION

The JYKEVÄ beam extension converts the grader blade into a field and road grader. The beam extension is installed with a bolt fastener to a flange welded onto the grader blade body.

The beam extension is 200 cm in length. The wheels are amply sized at 11.5 / 80 x 15.3. The blade angle can be adjusted with a hydraulic tilt on the rear axle. A drawbar for coupling the grader to a 3-point linkage is included.

The beam extension is available for hydraulic models H20 and H30.

Accessories

Support wheels

Product description

Product description: Road grading, field levelling and plowing the first snow on gravel roads and yards are made easy by the support wheel, which are mounted behind the board.

JYKEVÄ support wheels are fitted with heavy-duty bracket frames. The wheels are amply sized: 155R13, with a height of approx. 500 mm.

The bracket frames are fitted with a design-protected spring suspension, which turns the wheels behind the board out of the way when not in use or the board is raised Wheel height can be easily adjusted; fine adjustments are made by positioning the tractor push rod.

End plates

Product description

Quick-mount end plates make plowing yards and earthmoving fast and easy. Even larger volumes of snow or earth can be moved at one time.

If necessary, the end plate can be rotated on its mounting shaft to its back position, thus moving the snow or earth out to the side when grading. When the unit runs into an obstacle, the end plates rise up to prevent any damage.

Snow wing

Product description

The snow wing is installed on the right end of the board in place of the end plate. The wing lowers the snowbank and pushes snow more effectively on top of it.

Pressure relief valve

Product description

The rotary actuators on JYKEVÄ grader blades come standard with a lock valve, which protect the tractor hydraulics from pressure surges. Available as an accessory, the pressure relief valve is installed in place of the lock valve on the rotary actuator.

The pressure relief valve is connected to a tank, into which the valve directs any overpressure on the actuator caused when the grader blade strikes a stone, stump or other obstacle. This alleviates any sudden impacts on the grader blade, tractor and hydraulics, thus protecting the equipment and operator from damage/injury. The valve can be used to adjust the release pressure separately in both directions.

The pressure relief valve can be ordered for factory installation on a new grader blade instead of the lock valve. The valve is also available as an installation kit, which can be installed by the operator on an older grader blade.

NTP-10 adapter

Product description

The adapter is used to connect the JYKEVÄ hydraulic grader blade board and all attachments to the NTP10 flange. Upon request, the adapter can also be fitted with other standard flanges instead of the NPT-10 flange.