ER 250

Q: What different models are available?

We have the ER 250-2, ER 250-3 and ER 250-4

Transverse drum cutter

Different motor variants available - find more information below

ER 250

Metric
US/Imperial

Technical Data

Carrier weight class	8 - 15 t 17 600 - 33 000 lb
Service weight	570 kg 1 260 lb
Product weight	500 kg 1 100 lb
Nominal power	45 kW
Rotation speed	90 rpm
Optimum oil flow ³	60 - 85 l/min 15,9 - 22,5 gal/min
Max. torque @ 350 bar	5 200 Nm
Max. cutting force @ 350 bar	26 000 N
Pick shaft diameter	22 mm 0,9 inch
Number of picks	44 pc
Max. oil flow @ 10 bar	100 l/min 26,4 gal/min
Max. operating pressure	350 bar 5 076 psi

Weights apply to standard carriers only. Any variances must be agreed with Epiroc and/or the carrier manufacturer prior to attachment.
Attachment with standard picks & average-sized adapter plate.
Various motor variants available per model.

Measurements

Length of drum cutter (A): 965 mm

Width of cutting head (B): 685 mm

Diameter of cutting head (C): 450 mm

All ER drum cutters

Download our brochures

More information about rotary drum cutters

What different models are available?

We have the ER 250-2, ER 250-3 and ER 250-4

What is the difference between the models?

They have different motors

What is the difference of the motors?

		ER 250-2	ER 250-3	ER 250-4
Recommended rotation speed	rpm	90	90	90
Recommended oil flow	l/min	60	70	85
Maximum oil flow at 10 bar	l/min	100	100	100
Maximum operating oil pressure	bar	350	350	350
Torque at 350 bar	Nm	3,500	4,350	5,200
Cutting force at 350 bar	N	15,600	17,400	23,200

What is the standard pick for the ER 250?

Round attack pick (from 07-2012)

ER 12/45/38/22 HC

Application: Asphalt, soft and abrasive rock

Part number: 3311004565

What is the right pick box for the ER 250?

Pick box: PH 450 UA (from 07-2012)

Part number: 3311001804

How can you fix the picks on the pick box?

Retaining clip

ES 450

Part number: 3311000990

What about additional picks, pick boxes and retainers? (till 06-2012)

Round attack pick

ER 09/51/25/20 K (self-locking, no retainer needed)

Application: Soft rock, salt, gypsum

Part number: 3311004560

Round attack pick

ER 13/48/44/20 H (self-locking, no retainer needed)

Application: Concrete, soft to medium hard rock

Part Number: 3311004561

Round attack pick

ER 15/48/44/20 H (self-locking, no retainer needed)

Application: Concrete, soft to medium hard rock

Part number: 3311004564

Round attack pick

ER 16/46/38/20 C (retainer needed)

Application: Concrete, soft to medium hard rock

Part number: 3311004559

Round attack pick

ER 16/48/32/20 H (self-locking, no retainer needed)

Application: Asphalt

Part number: 3311004562

Round attack pick

ER 19/48/36/20 H (self-locking, no retainer needed)

Application: Asphalt

Part number: 3311004563

Find more options in our cutting tools brochure. Click here

What about additional picks, pick boxes and retainers? (from 07-2012)

Round attack pick

ER 12/45/38/22 HC

Application: Concrete, medium hard and abrasive rock

Part number: 3311004565

Retaining clip

ES 450

Part number: 3311000990

Round attack pick

ER 12/45/38/22 C

Application: Concrete, medium hard rock

Part number: 3311004566

Retaining clip

ES 450

Part number: 3311000990

Round attack pick

ER 15/46/38/22 C

Application: Concrete, medium hard rock

Retaining clip

ES 450

Part number: 3311000990

Robust spur gears

for optimum energy transmission and maximum reliability

Mechanical 360° rotatable bracket

for easy positioning of the drum cutter

Large variety of cutting heads

for various applications available

High load resistant output shaft bearing system with lubrication-free slide ring seal system

Robust housing with wear protection

for higher uptime

Adoptable high torque radial piston motor

for higher productivity and motor lifetime

Can be used up to 30 meters underwater without additional installation or modification

See more about the features of the ER drum cutters

ER range features

Find features and options for the ER drum cutter range

Related products

ERC drum cutter range

The ERC range from Erkat represents a new generation of revolving rotary drum cutters that extends significantly the number of applications suitable for transverse drum cutters.

ER-L range

Longitudinal drum cutters are driven by a powerful radial piston motor creating extremely high cutting forces. The robust cutter drums together with their secure fixing method enable them to operate in the most demanding conditions. Consoles can be supplied with different lengths to suit a variety of applications.

ADU range

ADU auger drive units are almost indestructible, high performance drives that have proven themselves many times while successfully drilling holes in medium hard limestone with 60 MPa compressive strength.

Applications for drum cutters and auger drive units

This is an overview about the applications for our drum cutters and auger drive units.

ER 250

Drum cutter ER 250

Road construction

Cleaning slag from runners

Transverse drum cutter

ER 250

Measurements

All ER drum cutters

Download our brochures

More information about rotary drum cutters

What different models are available?

What is the difference between the models?

What is the difference of the motors?

What is the standard pick for the ER 250?

What is the right pick box for the ER 250?

How can you fix the picks on the pick box?

What about additional picks, pick boxes and retainers? (till 06-2012)

What about additional picks, pick boxes and retainers? (from 07-2012)

Robust spur gears

Mechanical 360° rotatable bracket

Large variety of cutting heads

High load resistant output shaft bearing system with lubrication-free slide ring seal system

Robust housing with wear protection

Adoptable high torque radial piston motor

Can be used up to 30 meters underwater without additional installation or modification

See more about the features of the ER drum cutters

ER range features

Related products

ERC drum cutter range

ER-L range

ADU range

Applications for drum cutters and auger drive units