Mandrel-free Range

Non-mandrel rotary draw bending machines

Mackma tube and pipe draw bending machines represent excellent quality and value. Perfect for many sectors, they are the ideal, affordable choice where ultra-precise inside tube diameter accuracy is not essential. Choose from 34 mm to 273 mm models.

About Mandrel-Free Tube Bending

Unison | Mandrel-free Range 0

BM34 small rotary draw bending machine

Bend tube of up to 33.4 mm in diameter and 3.38 mm wall thickness
Maximum 170 mm centre line radius
High performance from a compact machine

Unison | Mandrel-free Range 1

BM42 rotary draw bending machine

Bend tube of up to 42.16 mm diameter and 3.56 mm wall thickness,
with 3xOD minimum radius and 260 mm maximum radius
Rotational speed ranges between 2 RPM and 3 RPM
Potentiometer allows operator to choose most suitable rotational speed

Unison | Mandrel-free Range 2

BM48 rotary draw bending machine

Bend tube of up to 48 mm diameter and 3.5 mm wall thickness,
with 3xOD minimum radius and 260 mm maximum radius
Rotational speed ranges between 2 RPM and 3 RPM
Potentiometer allows operator to choose most suitable rotational speed

Unison | Mandrel-free Range 3

BM60 rotary draw bending machine

Bend tube of up to 60 mm diameter and 4 mm wall thickness,
with 3xOD minimum radius and 380 mm maximum radius
Rotational speed ranges between 1 RPM and 2 RPM
Potentiometer allows operator to choose most suitable rotational speed

Unison | Mandrel-free Range 4

BM76 rotary draw bending machine

Bend tube of up to 76 mm diameter and 3 mm wall thickness,
with 3xOD minimum radius and 380 mm maximum radius
Rotational speed ranges between 1 RPM and 2 RPM
Potentiometer allows operator to choose most suitable rotational speed

Unison | Mandrel-free Range 5

BM100 rotary draw bending machine

Bend tube of up to 101.6 mm diameter and for 5.74 mm wall thickness
600 mm maximum centre line radius
Bend rotational speed (max 1.2 RPM) monitored by dedicated inverter to ensure correct bending speed for tube diameter and thickness

Unison | Mandrel-free Range 6

BM125 rotary draw bending machine

Bend tube of up to 114.3 mm diameter and 8.56 mm wall thickness
700 mm maximum centre line radius
Bend rotational speed [max 0.98 RPM] monitored by dedicated inverter to ensure correct bending speed for tube diameter and thickness

Unison | Mandrel-free Range 7

BM150 large rotary draw bending machine

Bend tube of up to 141.3 mm diameter and 9.5 mm wall thickness
Minimum bending radius of 3xOD
850 mm maximum centre line radius
Minimum 1 RPM to maximum 2 RPM rotational speeds

Unison | Mandrel-free Range 8

BM200 large capability rotary draw bending machine

Bend tube of up to 219 mm diameter and 6.3 mm wall thickness
Minimum bending radius of 3xOD
900 mm maximum centre line radius
Integrated attachment for installation of internal/external conical deburring tool

Unison | Mandrel-free Range 9

BM250 larger capability rotary draw bending machine

Bend tube of up to 219.1 mm diameter and 12.7 mm wall thickness
Minimum bending radius of 3xOD
1200 mm maximum centre line radius
Maximum 0.6 RPM rotational speed

Unison | Mandrel-free Range 10

BM300 larger capability rotary draw bending machine

Bend tube of up to 273 mm in diameter and 18.26 mm wall thickness
1700 mm maximum centre line radius
Maximum 0.4 RPM rotational speed
Inverter-controlled motor minimises energy consumption