Patch planers for milling asphalt and concrete with accurate depth control

Patch planers in the EX range are ideally suited for the repair of asphalt surfaces, removal of contaminated concrete or milling layers of screed. Mechanical or hydraulic depth control makes milling to very accurate depth possible, to a maximum of 19 centimeters.

KEMROC patch planers are available in 5 different sizes with a model suitable for use on any excavator or alternative carrier in the operating weight range of 1 to 23 tons.

Regardless of whether horizontal, vertical or inclined – the EX range can be used on any surface orientation. KEMROC planers can even be used on overhead surfaces, as can be found for example, in some tunnelling applications. Patch planers produce clean, smooth cut edges (pre-cutting is not necessary) and a fine grained cut material that can be used in other applications.

Depending on the material to be milled, cutter drums can be fitted with different tooling variations. In addition, non-standard drum types and widths can be supplied to meet unusual working conditions and ensure the best performance possible.

  • A rigid support frame with wear resistant slides
  • High torque, modifiable, hydraulic motor
  • Robust housing, low vibration
  • Accurate depth control (mechanical or hydraulic)
  • Smooth cut edges and fine grained cut material
  • Integrated water jets for dust control (connections for vaccum dust extraction optional)
  • An integrated rotation unit, providing continuous stepless rotation, is availabe as an option

Compare models

EX 20 EX 20 HD EX 30 HD EX 45 HD EX 60 HD
→ Technical data → Technical data → Technical data → Technical data → Technical data
Recommended excavator weight:
1 – 3 t
Recommended excavator weight:
2 – 4 t
Recommended excavator weight:
5 – 10 t
Recommended excavator weight:
10 – 16 t
Recommended excavator weight:
15 – 23 t
Rated power:
22 kW
Rated power:
22 kW
Rated power:
30 kW
Rated power:
65 kW
Rated power:
80 kW
Recommended oil flow at 100 bar:
20 – 50 l/min
Recommended oil flow at 100 bar:
25 – 65 l/min
Recommended oil flow at 100 bar:
60 – 95 l/min
Recommended oil flow at 100 bar:
110 – 170 l/min
Recommended oil flow at 100 bar:
150 – 200 l/min
Cutting width, standard (A):
200 mm
Cutting width, standard (A):
200 mm
Cutting width, standard (A):
300 mm
Cutting width, standard (A):
450 mm
Cutting width, standard (A):
600 mm
Cutting depth, adjustable (B):
0 – 70 mm
Cutting depth, adjustable (B):
0 – 70 mm
Cutting depth, adjustable (B):
0 – 120 mm
Cutting depth, adjustable (B):
0 – 150 mm
Cutting depth, adjustable (B):
0 – 190 mm

EX 20

  • Recommended excavator weight
    1–3 t
  • Rated power
    22 kW
  • Recommended rotation speed
    80–200 rpm
  • Recommended oil flow at 150 bar
    20–50 l/min
  • Minimum oil flow
    20 l/min
  • Maximum oil flow
    70 l/min
  • Maximum operating hydraulic pressure
    310 bar
  • Torque at 205 bar
    660 Nm
  • Cutting force at 205 bar
    4 kN
  • Cutting with standard (A)
    200 mm
  • Cutter depth, adjustable (B)
    0 – 70 mm
  • Operating Weight
    165 kg
  • Number of picks in cutter drums
    42 Pcs
  • Standard pick 1)
    ER 16/28/26/14 H


1) Cutter drums can be supplied with picks for special applications as required.

Patch planers in the EX range can be supplied with a rotation module as an option.

EX 20 HD

  • Recommended excavator weight
    2–4 t
  • Rated power
    22 kW
  • Recommended rotation speed
    80–200 rpm
  • Recommended oil flow at 150 bar
    25-65 l/min
  • Minimum oil flow
    25 l/min
  • Maximum oil flow
    90 l/min
  • Maximum operating hydraulic pressure
    310 bar
  • Torque at 205 bar
    1,000 Nm
  • Cutting force at 205 bar
    6 kN
  • Cutting with standard (A)
    200 mm
  • Cutter depth, adjustable (B)
    0 – 70 mm
  • Operating Weight
    170 kg
  • Number of picks in cutter drums
    42 Pcs
  • Standard pick 1)
    ER 16/28/26/14 H


1) Cutter drums can be supplied with picks for special applications as required.

Patch planers in the EX range can be supplied with a rotation module as an option.

EX 30 HD

  • Recommended excavator weight
    5–10 t
  • Rated power
    30 kW
  • Recommended rotation speed
    80–125 rpm
  • Recommended oil flow at 150 bar
    60-95 l/min
  • Minimum oil flow
    60 l/min
  • Maximum oil flow
    110 l/min
  • Maximum operating hydraulic pressure
    380 bar
  • Torque at 350 bar
    4,100 Nm
  • Cutting force at 350 bar
    16 kN
  • Cutting with standard (A)
    300 mm
  • Cutter depth, adjustable (B)
    0 – 120 mm
  • Operating Weight
    400 kg
  • Number of picks in cutter drums
    35 Pcs
  • Standard pick 1)
    ER 16/48/30/20 H


1) Cutter drums can be supplied with picks for special applications as required.

Patch planers in the EX range can be supplied with a rotation module as an option.

EX 45 HD

  • Recommended excavator weight
    10–16 t
  • Rated power
    65 kW
  • Recommended rotation speed
    70–110 rpm
  • Recommended oil flow at 100 bar
    110-170 l/min
  • Minimum oil flow
    100 l/min
  • Maximum oil flow
    180 l/min
  • Maximum operating hydraulic pressure
    380 bar
  • Torque at 350 bar
    8,700 Nm
  • Cutting force at 350 bar
    30 kN
  • Cutting with standard (A)
    450 mm
  • Cutter depth, adjustable (B)
    0 – 150 mm
  • Operating Weight
    730 kg
  • Number of picks in cutter drums
    49 Pcs
  • Standard pick 1)
    ER 16/48/32/20 H


1) Cutter drums can be supplied with picks for special applications as required.

Patch planers in the EX range can be supplied with a rotation module as an option.

EX 60 HD

  • Recommended excavator weight
    15–23 t
  • Rated power
    80 kW
  • Recommended rotation speed
    70–95 rpm
  • Recommended oil flow at 100 bar
    150-200 l/min
  • Minimum oil flow
    150 l/min
  • Maximum oil flow
    210 l/min
  • Maximum operating hydraulic pressure
    380 bar
  • Torque at 350 bar
    9,300 Nm
  • Cutting force at 350 bar
    28 kN
  • Cutting with standard (A)
    600 mm
  • Cutter depth, adjustable (B)
    0 – 190 mm
  • Operating Weight
    1,230 kg
  • Number of picks in cutter drums
    69 Pcs
  • Standard pick 1)
    ER 19/48/32/20 H


1) Cutter drums can be supplied with picks for special applications as required.

Patch planers in the EX range can be supplied with a rotation module as an option.