Verti-Drain® 7521 Aeration Machine

Superior Aeration with the Verti-Drain® 7521 from Redexim

The Verti-Drain® 7521 by Redexim, a robust machine capable of working to a depth of 16 inches (400 mm), is engineered for deep, efficient, versatile aeration for a wide range of turf surfaces. This machine is ideal for independent contractors, golf course maintenance, and other fine turf areas seeking comprehensive, regular turf maintenance.

Deep Aeration

Capable of reaching depths up to 16 inches, the Verti-Drain® 7521 promotes significant root development, improves both water infiltration and nutrient uptake, and ensures turf remains robust and healthy even under heavy use.

Customizable Tine Options

The 7521 supports a variety of solid and hollow tines, allowing for tailored aeration to suit different turf conditions, ensuring optimal performance across various aeration applications.

Durable Build

This model is constructed with a heavy-duty chassis designed to withstand tough soil conditions, providing long-term reliability and consistent performance, making it an essential tool for turf maintenance professionals.

Ideal for Mid-Size Tractors

Specifically designed to align with the wheel width of mid-size chassis tractors, the 7521 offers efficient aeration without sacrificing maneuverability.

User-Friendly Features

The Verti-Drain® 7521 has a three-point hitch and integrated parking stands that make it easy to set up and operate. The intuitive controls ensure accessibility for all operators, enhancing productivity and minimizing downtime.

Superior Surface Finish

Optional components like the rear roller kit and rotating brush ensure a smooth, professional appearance post-aeration.

Increased Productivity

The Verti-Drain® 7521’s high working speed and wide working width enable you to cover larger areas more efficiently, reducing the time and labor required for aeration.

Eco-Friendly Operation

Designed with environmental sustainability in mind, the 7521 minimizes soil disruption while maximizing turf health, contributing to an eco-friendly maintenance routine.

SKU 7521
Operation Tractor Mounted
Working width (m) 2.1
Working width (inch) 83
Max. Working depth (mm) 400
Max. Working depth (inch) 16
Working speed at hole spacing 65 mm (km h) 0.7
Working speed at hole spacing 2 1 2 inch (mph) 0.45
Weight (kg) 1375
Weight (lbs) 3025
Hole distance with 12 mm tines (mm) 65
Hole distance with 1 2 x 6 inch tines (inch) 2.5
Hole distance with 24 mm tines (mm) 129
Hole distance with 1 x 16 inch tines (inch) 5
Hole spacing distance driving direction (mm) 50-195
Hole spacing distance driving direction (inch) 2 – 7-1/2
Max. Diameter solid tine (mm) 24 x 400
Max. Diameter solid tine (inch) 1 x 16
Max. Diameter hollow tine (mm) 32 x 300
Max. Diameter hollow tine (inch) 1-1/4 x 12
Min. Tractor HP required 55
Min. Lifting capacity 610 mm behind the lifting eyes (kg) 1650
Min. Lifting capacity 24 inch behind the lifting eyes (lbs) 3600
Max. capacity with spacing 65 mm (m² hr) 1470
Max. capacity with spacing 2 1 2 inch (ft² hr) 13400
Three-point hitch 3-point CAT 2
Rpm Max. 500
Gear case oil 80W90 – 5.8
Lubricant EP2
Slip clutch setting 800 Nm
Description Quantity Article number
Toolbox with combi tool and manual 1
PTO Shaft 1
Solid Tine 18×300 16 2382638
Description Quantity Article number
Turf Hold Down Kit for 12mm tines – 7521 1 211.752.007
Turf Hold Down Kit for 24mm tines – 7521 1 211.752.006
Wheel Kit for 7521 1 211.752.104
Auxiliary Spring kit 8 211.752.004
Anti-vibration system 1 211.700.500
Rotating Brush for 7521 / 7621 1 211.752.100
Solid Tine 5×125 32 311.105.125
Requires
Adapter 5mm tines (3/16″) 32 314.205.043
Solid Tine 8×150 32 311.108.150
Requires
Adapter 8mm tines (5/16″) 32 314.208.043
Solid Tine 8×150 64 311.108.150
Requires
MTH Block for (8) tines 8mm (5/16″) 8 9990211
Solid Tine 8×175 32 9990056
Requires
Adapter 8mm tines (5/16″) 32 314.208.043
Solid Tine 8×175 64 9990056
Requires
MTH Block for (8) tines 8mm (5/16″) 8 9990211
Solid Tine 8×250 32 9990059
Requires
Adapter 8mm tines (5/16″) 32 314.208.043
Solid Tine 12×150 32 311.112.150
Solid Tine 12×200 32 311.112.200
Solid Tine 12×250 32 2381837
Solid Tine 12×300 32 2381838
Solid Tine 18×200 16 311.118.200
Requires
Adapter 18mm tines (3/4″) 16 2451800
Solid Tine 18×250 16 2381841
Requires
Adapter 18mm tines (3/4″) 16 2451800
Solid Tine 18×350 16 311.118.350
Requires
Adapter 18mm tines (3/4″) 16 2451800
Solid Tine 18×400 16 2382639
Requires
Adapter 18mm tines (3/4″) 16 2451800
Solid Tine 24×225 16 311.124.225
Solid Tine 24×350 16 311.124.350
Solid Tine 24×400 16 2382640
Hollow Tine 10×80 (8 shank) 32 311.210.080
Requires
Adapter 8mm tines (5/16″) 32 314.208.043
Hollow Tine 10×80 (8 shank) 64 311.210.080
Requires
MTH Block for (8) tines 8mm (5/16″) 8 9990211
Hollow Tine 10×125 (8 shank) 32 311.210.127
Requires
Adapter 8mm tines (5/16″) 32 314.208.043
Hollow Tine 10×125 (8 shank) 64 311.210.127
Requires
MTH Block for (8) tines 8mm (5/16″) 8 9990211
Hollow Tine 16×150 (12 shank) 32 311.216.150
Hollow Tine 16×175 (12 shank) 32 9990022
Hollow Tine 19×150 (12 shank) 32 311.219.150
Hollow Tine 19×200(18 shank) 16 311.219.200
Requires
Adapter 18mm tines (3/4″) 16 2451800
Hollow Tine 19×200 (12 shank) 32 311.219.201
Hollow Tine 19×225 (18 shank) 16 311.219.225
Requires
Adapter 18mm tines (3/4″) 16 2451800
Hollow Tine 19×225 (12 shank) 32 311.219.226
Hollow Tine 19×250 (12 shank) 32 9990040
Hollow Tine 19×250 (18 shank) 16 9990023
Requires
Adapter 18mm tines (3/4″) 16 2451800
Hollow Tine 25×200 (18 shank) 16 311.225.200
Requires
Adapter 18mm tines (3/4″) 16 2451800
Hollow Tine 25×225 (18 shank) 16 311.225.225
Requires
Adapter 18mm tines (3/4″) 16 2451800
Hollow Tine 25×250 (18 shank) 16 9990024
Requires
Adapter 18mm tines (3/4″) 16 2451800
Hollow Tine 29×250 (18 shank) 16 9990066
Requires
Adapter 18mm tines (3/4″) 16 2451800
Hollow Tine 32x21x300mm (1 1/4×13/16×12)”) MD: 24mm 16 9990034
Hollow Tine 32×300 (18 shank) 16 9990041
Requires
Adapter 18mm tines (3/4″) 16 2451800
Cross Tine 12×90 (8 shank) 32 9990020
Requires
Adapter 8mm tines (5/16″) 32 314.208.043
Cross Tine 12×90 (8 shank) 64 9990020
Requires
MTH Block for (8) tines 8mm (5/16″) 8 9990211
Cross Tine 12×90 (12 shank) 32 311.812.090
Cross Tine 19×120 (12 shank) 32 9990021
Chisel Tine 4.8x19x175 (12 shank) 32 311.619.175
Chisel Tine 4.8x19x120 (12 shank) 32 311.619.120

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