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 S40
Recommended HP Size 12-30 25-80 30-80 50-120 50-120
Maximum Carrier Size Check GPM & PSI Check GPM & PSI Check GPM & PSI Check GPM & PSI Check GPM & PSI
Motor Type Gerotor Gerotor Gerotor Gerotor Bent Axis Piston
Unit Weight (Shipping) Lbs. 394 642 995 995 1,200
36in Root Base

STUMP CUTTING TIMES BASED ON 24" STUMP

Motor Case Drain PSI 12 GPM 15 GPM 20 GPM 25 GPM 30 GPM 35 GPM 40 GPM CC Motor
Type
RPM at
MAX GPM
S250 Motor
Available for : S14
Not Required 2,500 50 min 40 min -- -- -- -- -- 50 Roller Vane 910
3,000 40 min 35 min -- -- -- -- --
S450 Motor
Available for : S14,S18
Not Required 2,500 60 min 40 min 35 min -- -- -- -- 125 Roller Vane 520
3,000 50 min 30 min 30 min -- -- -- --
3,500* -- 30 min 25 min 20 min 16 min -- --
3,500* -- -- 40 min 25 min 15 min 12 min 10 min

 * Motor will run at this PSI but excess pressure is dumping over relief.

SKIDSTEER STUMP CUTTING TIMES BASED ON 24" STUMP

Motor Case Drain PSI 12 GPM 15 GPM 20 GPM 25 GPM 30 GPM 35 GPM 40 GPM 50 GPM CC Motor
Type
RPM at
MAX GPM
3,000 40 min 35 min -- -- -- -- -- --
3,500* 40 min 35 min -- -- -- -- -- --
S445 Motor
Available for : S24
Not Required 2500 -- 60 min 40 min 35 min -- -- -- -- 125 Roller Vane 520
3,000 -- 50 min 30 min 30 min -- -- -- --
3,500* -- 50 min 30 min 30 min -- -- -- --
3,000 -- -- 30 min 30 min 20 min 16 min -- --
3,500* -- -- 30 min 30 min 20 min 16 min -- --
3,000 -- -- -- 40 min 25 min 15 min 12 min 10 min
3,500* -- -- -- 40 min 25 min 15 min 12 min 10 min
3,000 -- -- 25 min 12 min 10 min 8 min -- --
3,500 -- -- 23 min 10 min 8 min 6 min -- --
3,000 -- -- -- 25 min 10 min 8 min 7 min 6 min
3,500 -- -- -- 23 min 8 min 6 min 5 min 4 min

 * Motor will run at this PSI, but excess pressure is dumping over relief.
    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
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Updated as of September 24, 2021 4:10 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
WB44Stock7MTB
HGW30119119MTB
HGW60R480480
1P24Stock11MTBAdd 20 days for any custom colour
3P244545Add 20 days for any custom colour
3P24-S10504545S1050 kit mounted. Add 20 days for any custom colour
S10504040Other 3P with valve kit (this covers all the time)
3P344545Add 20 days for any custom colour
3P34-S10504545S1050 kit mounted. Add 20 days for any custom colour
3P404646
S14Stock19MTBStock w/S250 and D001126
S165% + more for media265265Pre-Production Discount
S18-S450Stock40MTBStock w/D001127 plate
S18-S550Stock40MTBStock w/D001127 plate
S18-S650Stock40MTBStock w/D001127 plate
S24-S4451742
S24-S5451742
S285765
S406666
HGS50F6060
GXM3506666
GXM5506666
GXM7506969

PUBLIC HOLIDAYS

Date Description
2021-10-01Closed for National Day for Truth and Reconciliation
2021-10-11Canadian Thanks giving