20 tools
Grass, hedge and tree maintenance
8.2 m
Huge flexibility with the arm reach
8,000 kg
Minimum tractor weight
2-years warranty
High quality materials that ensure a long life
![GreenTec Boom Mower Spider 820 PLUS](https://greentec.eu/wp-content/uploads/2023/04/Spider-820-PLUS-image-cover-desktop-0.webp)
Overview
Spider 820 PLUS
Our Spider 820 PLUS is a professional boom mower used by municipalities, agricultural contractors, forest workers and landscapers. A large selection of tools can be attached to the Spider boom mower for roadside maintenance, hedge cutting and tree trimming.
The Spider 820 PLUS is a highly flexible solution. You can easily change the position of the arm from either working in the right or left side of the road. The arm can be extended forward so the attachment tool is always visible to the driver. The Spider 820 PLUS can be rear mounted on large tractors with a weight of at least 8,000 kg (17,637 lb).
![GreenTec Boom Mower Spider Series](https://greentec.eu/wp-content/uploads/2023/03/Spider-720-PLUS-featured-image-1.webp)
Powerful features
Mow on both sides of the tractor
Gives the driver a better view to the attachment tool
Control the arm with or without parallel motion
Quick jump to
Specifications
Spider 820 PLUS
Horizontal reach |
8.2 m
|
26'11"
|
Vertical reach |
8.1 m
|
26'7"
|
Transport width |
2.4 m
|
7'10"
|
Pump |
Danfoss 60 ccm piston pump
|
|
Hydraulic system |
125 l/min @ 315 bar
|
33.02 gpm @ 4569 psi
|
Weight without tools |
2,385 kg
|
5,258 lb
|
Minimum size of tractor |
8,000 kg
|
17,637 lb
|
Under the hood
Spider 820 PLUS
Hybrid arm system
Control the arm with or without parallel motion
Rotor Flex
270° turn of cutting head and 180° cutting angle
Danfoss joystick
4 proportional functions
Air stream control
Effective oil cooling
LED lights
Visible from a long distance
Flexibility
270° hydraulic turn of the arm
Strenx 700 steel
One of the most durable steel types in the world
Hydraulic system
Danfoss 60 ccm piston pump
270° arm movement
Mow on both sides of the tractor
The working range of both the arm and the cutting head is 270°. This results in unparalleled flexibility, which makes it possible to move the cutting head in any position - right, left, front or back.
Rotor Flex
With Rotor Flex the cutting head is always in the driver’s natural field of vision
Rotor Flex has a double pivot joint which enables you to move the cutting head forward, so it is in the driver’s natural field of vision. The cutting head can also be moved behind the vehicle which is useful for verge mowing on small roads with oncoming traffic.
Auto Height Control (optional)
Relieves the driver from manual adjusting to the contours of the terrain
Auto Height Control is used for verge and ditch mowing. It ensures that the cutting head floats above the surface and does not mow into the ground by following the contours of the terrain. This is all done automatically. The driver does not need to maneuver the boom mower with the joystick.
Hybrid arm system
Switch between parallel and non-parallel motion
The parallel motion takes place through a Master Slave System and is especially used for hedge trimming. The non-parallel motion shines in cramped conditions, such as forest roads and trails. It can also be particularly useful for grass mowing in slopes and ditches.
Equipment overview
Side shift frame for right or left driving |
|
Hybrid Arm System with dual function |
|
Strenx 700 steel construction |
|
270° hydraulic turn of the arm with power control |
|
Rotor Flex, double pivot joint (270° turn of cutting head and 180° cutting angle) |
|
Auto Flex, automatic vertical positioning |
|
Danfoss proportional valve PVG 32/16 |
|
Danfoss joystick with 4 proportional functions |
|
2 oil flows: 85 and 50 l /min (22.45 and 13.21 gpm) for attachment tool |
|
Hydraulic float of arm and cutting angle |
|
Oil cooler |
|
Air Stream Control (effective oil cooling) |
|
220 l (58.12 gallons) oil tank capacity |
|
4-point mounting for cat. 2 or 3 |
|
PTO 500-750 rpm |
|
Automatic Hydraulic Security (AHS) |
|
Transport safety |
|
LED lights |
|
Auto Height Control (for verge mowing)* |
|
Quick release, hydraulic |
|
Quick release, mechanical |
|
Hose kit, 4 pieces for arm |
|
K80 ball hitch for 4-point mounting** |
|
Leaf Blower LG attached to boom mower |
|
Bio oil |
|
* Cannot be retrofitted
** Requires K80 on the tractor at top bar height
Attachment tools
↕️ Range: 2.3 m (7'7")
🌳 Limb: Ø 4 cm (1.6")
↕️ Range: 1.6 m (5'3")
🌳 Limb: Ø 4 cm (1.6")
↕️ Range: 2.0 m (6'7")
🌳 Limb: Ø 16 cm (6.3")
↕️ Range: 2.4 m (7'10")
🌳 Limb: Ø 21 cm (8.3")
↕️ Range: 2.1 m (6'11")
🌳 Limb: Ø 6 cm (2.4")
↕️ Range: 2.4 m (7'10")
🌳 Limb: Ø 6 cm (2.4")
Models
Spider 820-8 PLUS, rear mounted
Technical documents
Related products
↔️ Arm: 5.2 m (17'1")
↕️ Arm: 5.1 m (16'9")
↔️ Arm: 6.2 m (20'4")
↕️ Arm: 6.1 m (20')
↔️ Arm: 7.2 m (23'7")
↕️ Arm: 7.1 m (23'4")
↔️ Arm: 8.2 m (26'11")
↕️ Arm: 8.1 m (26'7")
↔️ Arm: 3.3 m (10'10")
↕️ Arm: 3.1 m (10'2")
↔️ Arm: 3.3 m (10'10")
↕️ Arm: 3.1 m (10'2")
↔️ Arm: 3.3 m (10'10")
↕️ Arm: 3.1 m (10'2")
↔️ Arm: 3.3 m (10'10")
↕️ Arm: 3.1 m (10'2")
↔️ Arm: 4.3 m (14'1")
↕️ Arm: 4.1 m (13'5")
↔️ Arm: 4.3 m (14'1")
↕️ Arm: 4.1 m (13'5")
↔️ Arm: 4.3 m (14'1")
↕️ Arm: 4.1 m (13'5")
↔️ Arm: 4.3 m (14'1")
↕️ Arm: 4.1 m (13'5")
↔️ Arm: 5.3 m (17'5")
↕️ Arm: 5.1 m (16'9")
↔️ Arm: 5.3 m (17'5")
↕️ Arm: 5.1 m (16'9")
↔️ Arm: 5.3 m (17'5")
↕️ Arm: 5.1 m (16'9")
↔️ Arm: 6.3 m (20'8")
↕️ Arm: 6.1 m (20')
↔️ Arm: 6.3 m (20'8")
↕️ Arm: 6.1 m (20')
↔️ Arm: 6.3 m (20'8")
↕️ Arm: 6.1 m (20')
↔️ Arm: 7.3 m (23'11")
↕️ Arm: 7.1 m (23'4")
↔️ Arm: 7.3 m (23'11")
↕️ Arm: 7.1 m (23'4")
↔️ Arm: 8.3 m (27'3")
↕️ Arm: 8.1 m (26'7")
↔️ Arm: 8.3 m (27'3")
↕️ Arm: 8.1 m (26'7")
FAQ
We sell our products through a network of dealers. We encourage you to contact your local GreenTec dealer for more information.
If you need any sales advice or cannot find a dealer near you, feel free to contact us on telephone: +45 75553644 or e-mail: sales@greentec.eu
We are available Monday to Thursday from 08.00 - 16.00 CET and Friday from 08.00 - 15.00 CET.
All products are manufactured in Denmark at our production facilities which consist of 5,500 m². We have employees welding components, assembling machines and checking features before the product is shipped to the customer.
We love to give customers a tour of our factory. If you are planning a visit to Denmark, you can schedule an appointment through e-mail: sales@greentec.eu
Our dealers sometimes do demonstrations. You must contact your local GreenTec dealer and ask if they have any upcoming demonstrations.
You cannot rent GreenTec machines directly through us.
We encourage you to contact your local GreenTec dealer to get a list of customers that might be able to offer this service.