s14 s18 s24 s28 s40

High Performance Skid Steer Stump Grinder - S40

The S40 stump grinder is mounted with a bent axis piston motor. By matching a motor to your skid steers hydraulic flow these high efficiency motors make the most hydraulic power transforming it into the highest available stump grinding performance. Stocked with 20 carbide Green teeth the massive 1.25” thick steel rotor provides the back bone for the Skidsteer mounted stump grinder. The high number of teeth means that each tooth needs to do less work. Each tooth only needs to make a small cut, because the work is shared by more of these green teeth, which last longer and typically only need 2 or 3 replaced at a time. The bolt-on designed teeth allow for straightforward replacement. The teeth can also be rotated up to 3 times to provide a renewed cutting surface even in the field.

The extra-large Blast shield is designed with dual rows of chain curtains to contain and control chips during grinding. The Blast shield is hinged to give the best protection and chip control throughout the grinding process. This hinge also allows the shield to be raised to get into tight areas and for easy access to the rotor and teeth.

Visibility

Excellent Visibility from the operators seat.

Visibility

Swing Arm

Dual swing cylinders for smoother, more controlled swing speed operation.

Swing arm

Hose Shield

Double shielded hoses for extra protection.

Hose shield

Aux

Baumalight now offers a more direct and simple way of connecting to your skid steer's auxiliary electrical connection. Simply connect the hydraulics and plug in the electrical. Now you can control the attachment from inside your cab.

AUX

Bent Axis Piston Motor

Our industry leading bent axis piston motors make the most efficient use of your hydraulic flow and pressure for your stump grinding needs.

Bent axis piston motor

Rotor

The massive 1.25" thick steel rotor provides the back bone for the Holt Eraser stump grinder. It's the anchor of the carbide teeth.

Rotor

Blast Shield

Designed with an extra-large Blast shield with dual rows of chain curtains to contain and control chips during grinding. After grinding it also helps clean up giving you the ability to back fill without switching attachments.

Blast shield

Green Teeth

The high number of green teeth means that each tooth needs to do less work. Each of the Holt Eraser stump grinder's teeth only need to make a small cut, because the work is shared by more of these rugged teeth, which last longer and typically only need 2 or 3 replaced at a time. The bolt-on designed teeth allow for straightforward replacement.

Green teeth

Visibility

Excellent Visibility from the operators seat.

Visibility

Swing Arm

Dual swing cylinders for smoother, more controlled swing speed operation.

Swing arm

Hose Shield

Double shielded hoses for extra protection.

Hose shield

Aux

Baumalight now offers a more direct and simple way of connecting to your skid steer's auxiliary electrical connection. Simply connect the hydraulics and plug in the electrical. Now you can control the attachment from inside your cab.

AUX

Bent Axis Piston Motor

Our industry leading bent axis piston motors make the most efficient use of your hydraulic flow and pressure for your stump grinding needs.

Bent axis piston motor

Rotor

The massive 1.25" thick steel rotor provides the back bone for the Holt Eraser stump grinder. It's the anchor of the carbide teeth.

Rotor

Blast Shield

Designed with an extra-large Blast shield with dual rows of chain curtains to contain and control chips during grinding. After grinding it also helps clean up giving you the ability to back fill without switching attachments.

Blast shield

Green Teeth

The high number of green teeth means that each tooth needs to do less work. Each of the Holt Eraser stump grinder's teeth only need to make a small cut, because the work is shared by more of these rugged teeth, which last longer and typically only need 2 or 3 replaced at a time. The bolt-on designed teeth allow for straightforward replacement.

Green teeth
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 Gerotor
Hydraulic GPM Check Stump Cutting Size Chart Check Stump Cutting Size Chart Check Stump Cutting Size Chart Check Stump Cutting Size Chart Check Stump Cutting Size Chart
Rotor Size 18" 24" 24" 24" 24"
Number of Teeth 12 34 34 34 20
Tooth Construction Green Planer Planer Planer Green
Cutting Wheel Speed Depends on GPM Depends on GPM Depends on GPM Depends on GPM Depends on GPM
Cutting Height - Above Ground No limit No limit No limit No limit No limit
Cutting Depth - Below Ground 6" 10" 10" 10" 24"
Maximum Cutting Depth - Per Pass 2" 5" 6" 6" 1"
Maximum Horizontal Cut 12" 22" 22" 22" 22"
Swing Arc Self-feeding Self-feeding 80° 80° 85°
Hub Torque 150 Ft.-Lbs. 250 Ft.-Lbs. 250 Ft.-Lbs. 803 Ft.-Lbs. -
Over Torque Protection Relieve valve Relieve valve Relieve valve Relieve valve Relieve valve
Hitch 1" pivot pins 1" pivot pins Quick Attach Quick Attach Quick Attach
No. of Remotes Required - Hydraulic 1 1 1 1 1
Requires 12 Volt DC No No Yes Yes Yes
Unit Weight (Shipping) Lbs. 394 642 995 995 1,200
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 Gerotor
Hydraulic GPM Check Stump Cutting Size Chart Check Stump Cutting Size Chart Check Stump Cutting Size Chart Check Stump Cutting Size Chart Check Stump Cutting Size Chart
Rotor Size 18" 24" 24" 24" 24"
Number of Teeth 12 34 34 34 20
Tooth Construction Green Planer Planer Planer Green
Cutting Wheel Speed Depends on GPM Depends on GPM Depends on GPM Depends on GPM Depends on GPM
Cutting Height - Above Ground No limit No limit No limit No limit No limit
Cutting Depth - Below Ground 6" 10" 10" 10" 24"
Maximum Cutting Depth - Per Pass 2" 5" 6" 6" 1"
Maximum Horizontal Cut 12" 22" 22" 22" 22"
Swing Arc Self-feeding Self-feeding 80° 80° 85°
Hub Torque 150 Ft.-Lbs. 250 Ft.-Lbs. 250 Ft.-Lbs. 803 Ft.-Lbs. -
Over Torque Protection Relieve valve Relieve valve Relieve valve Relieve valve Relieve valve
Hitch 1" pivot pins 1" pivot pins Quick Attach Quick Attach Quick Attach
No. of Remotes Required - Hydraulic 1 1 1 1 1
Requires 12 Volt DC No No Yes Yes Yes
Unit Weight (Shipping) Lbs. 394 642 995 995 1,200
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 included,
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 included,
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 included,
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
S40
S740 Motor 24" Stump Grind Time
  PSI Case Drain 20 GPM 25 GPM 30 GPM 35 GPM

Gerotor

Hoses included,
Couplers NOT included

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

56cc Displacement

3,000 Yes 30 min 15 min 12 min 10 min
3,500 Yes 25 min 12 min 10 min 8 min
Rotor RPM - - - 2100
     Note: 5 GPM is used for swing cylinder
S40
S770 Motor 24" Stump Grind Time
  PSI Case Drain 30 GPM 35 GPM 40 GPM 50 GPM

Gerotor

Hoses included,
Couplers NOT included

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

84cc Displacement

3,000 Yes 12 min 10 min 8 min 7 min
3,500 Yes 10 min 8 min 7 min 6 min
Rotor RPM - - - 2000
     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
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Updated as of April 18, 2019 11:41 AM 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% - DISCOUNTED UNITS STOCK IN HOLT COLORS (HGW13)99MTBDiscounted Stock in Holt Colors(HGW13)2 Units in stock in Holt Colors(HGW13)
1P24Stock5MTBCrated units only
3P24Stock5
S105055Any 3P with valve kit (this covers all the time)
3P345%Stock5MB CanadaDiscounted unit in MBOld Roadshow Stock
3P40Stock6In Georgia - Imp Sales Wharehouse
3P508383NEED TO DESIGNNew 150 Hp model
3P608383NEED TO DESIGNNew 200 hp model
S14513MTB
S18-S450Stock5MTBStock w/D001127 plate
S18-S550Stock5MTBStock w/D001127 plate
S18-S65055
S2488
S28513
S401313
GXM350614
GXM5501018
GXM7502222

PUBLIC HOLIDAYS

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