S14
S18
S24
S28

Skid Steer Stump Grinders

Stump Blaster skid steer stump grinders are available in 4 models with a total of 7 hydraulic motor options to make the most of your skid steer performance, with hydraulic flows ranging from 10–40 GPM. Use the Grind Time chart to find the right motor and stump grinder for you. All skid steer Stump Grinder units are shipped with standard skid steer quick attach, and the low flow motor options come with flat-face quick couplers as well, you can order high flow hydraulic quick couplers and we have a size chart on our skidsteer flow and pressure page.

The S14 and S18 are simple rugged grinders that bring cost effective stump grinding performance to your mini-skid steer and skid steer. With the addition of swing cylinders, the S24 and S28 bring even smoother stump grinding action to your skid steer and are ideal for Tree Stump Grinding Services.

We give 6 free teeth with all new purchases and offer more free stump grinder teeth in exchange for action shots useable for marketing.

Model No. S14 S18 S24 S28
Recommended HP Size 12-30 25-80 30-80 50-120
Maximum Carrier Size Check GPM & PSI Check GPM & PSI Check GPM & PSI Check GPM & PSI
Motor Type Gerotor Gerotor Gerotor Gerotor
Unit Weight (Shipping) Lbs. 394 642 995 995
36in Root Base
S14
S250 Motor 24" Stump Grind Time
  PSI Case Drain 8 GPM 10 GPM 12 GPM 14 GPM 15 GPM

Gerotor

Hoses and Couplers
Included

50cc Displacement

2,500 No 45 min 40 min 35 min 30 min N/A
3,000* No 45 min 40 min 35 min 30 min N/A
Rotor RPM 520 620 825 900 N/A
   * Motor will run at this PSI but excess pressure is dumping over relief
S14
S18
S450 Motor 24" Stump Grind Time
  PSI Case Drain 10 GPM 12 GPM 15 GPM 20 GPM 25 GPM

Gerotor

Hoses and Couplers
Included

125cc Displacement

2,500 No N/A 50 min 45 min 35 min N/A
3,000 No N/A 45 min 40 min 30 min N/A
3,500* No N/A 45 min 40 min 30 min N/A
Rotor RPM N/A 375 475 520 N/A
   * Motor will run at this PSI but excess pressure is dumping over relief
S18
S550 Motor 24" Stump Grind Time
  PSI Case Drain 12 GPM 15 GPM 20 GPM 25 GPM 30 GPM

Gerotor

Hoses and Couplers
Included

130cc Displacement

2,500 Yes N/A 43 min 30 min 20 min N/A
3,000 Yes N/A 38 min 20 min 15 min N/A
3,300* Yes N/A 38 min 20 min 15 min N/A
Rotor RPM N/A 450 540 700 N/A
   * Motor will run at this PSI but excess pressure is dumping over relief
S18
S650 Motor 24" Stump Grind Time
  PSI Case Drain 20 GPM 25 GPM 30 GPM 35 GPM 40 GPM

Gerotor

Hoses and Couplers
NOT Included

3/8" FM JIC on case
P+T 3/4" FM JIC

245cc Displacement

2,500 No N/A 25 min 20 min 15 min 12 min
3,000 Good to have N/A 20 min 15 min 12 min 10 min
3,300* Yes N/A 20 min 15 min 12 min 10 min
Rotor RPM N/A 330 420 480 540
   * Motor will run at this PSI but excess pressure is dumping over relief
S24
S445 Motor 24" Stump Grind Time
  PSI Case Drain 15 GPM 20 GPM 25 GPM 30 GPM

Gerotor

Hoses and Couplers
Included

125cc Displacement

2,500 No N/A 45 min 35 min N/A
3,000 Good to have N/A 40 min 30 min N/A
3,300* Yes N/A 40 min 30 min N/A
Rotor RPM N/A 475 520 N/A
   * Motor will run at this PSI but excess pressure is dumping over relief
   Note: 5 GPM is used for swing cylinder
S24
S545 Motor 24" Stump Grind Time
  PSI Case Drain 20 GPM 25 GPM 30 GPM 35 GPM

Gerotor

Hoses and Couplers
NOT included

3/8" FM JIC on case
P+T 3/4" FM JIC

130cc Displacement

2,500 Yes 43 min 30 min 20 min N/A
3,000 Yes 38 min 20 min 15 min N/A
3,300* Yes 38 min 20 min 15 min N/A
Rotor RPM 450 540 700 N/A
   * Motor will run at this PSI but excess pressure is dumping over relief
   Note: 5 GPM is used for swing cylinder
S28
S645 Motor 24" Stump Grind Time
  PSI Case Drain 30 GPM 35 GPM 40 GPM 45 GPM

Gerotor

Hoses and Couplers
NOT included

3/8" FM JIC on case
P+T 3/4" FM JIC

245cc Displacement

2,500 Yes 25 min 20 min 15 min 12 min
3,000 Yes 20 min 15 min 12 min 10 min
3,300* Yes 20 min 15 min 12 min 10 min
Rotor RPM 330 420 480 540
   * Motor will run at this PSI but excess pressure is dumping over relief
   Note: 5 GPM is used for swing cylinder

HOW TO CHOOSE THE RIGHT MOTOR

The most important part of choosing the right BrushFire is matching the correct motor option to your equipment. It can make a huge difference. In this video, we explain how to use our charts to determine which motor is right for you!

Understanding Motor Understanding Motor
Hydraulic Flow & Pressure Hydraulic Flow & Pressure
logo
logo
Updated as of March 19, 2019 5:21 PM EDT

UPCOMING PUBLIC HOLIDAYS

Date Description

STUMP GRINDERS

Model Number Discount Available Number of Business Days
to build first order
Number of Business Days
to build next order
Location Notes Discount Description
WB445% - FREE FREIGHT TO DEALERStock5MTBDiscounted Stock in Holt Colors(HGW13)2 Units available in Holt Colors(HGW13)
1P2433MTBDisplay unit in stock
3P24Stock3MTB
S105033Any 3P with valve kit (this covers all the time)
3P345%Stock3MBDiscounted unit in MBOld Roadshow Stock
3P40Stock4
3P506060NEED TO DESIGNNew 150 Hp model
3P606060NEED TO DESIGNNew 200 hp model
S14815MTB
S18-S450Stock3MTBStock w/D001127 plate
S18-S550Stock3MTBStock w/D001127 plate
S18-S65033
S24810
S28815
GXM350916
GXM5501320
GXM7502424

PUBLIC HOLIDAYS

Date Description
2019-04-19Good Friday
2019-05-20Victoria Day
2019-07-01Canada Day
2019-08-05Civic Holiday
2019-09-02Labour Day
2019-10-14Canadian Thanksgiving