Clarke & Lewis UTB CL-300HD Hydraulic Tube Bender


Clarke & Lewis UTB CL-300HD Hydraulic Tube Bender

The Clarke and Lewis series of CNC rotary tube benders provide capability of thin wall bending of aluminum, mild steel, stainless steel, inconel, titanium, etc.

The CNC control system enables full automatic bending of multi-bend work pieces and also provides a manual back- up system for full and separate manual operation.

The CNC control system uses a” PC” type computer with commercially available LED isolated input and output buffers. The unit features in depth diagnostics and ease of altering system control parameters.

The bend sequence can be altered from the system key board (featuring a self- prompting display) and data can be saved on a diskette.

Alternatively, data can be recorded on a “library” disc and the operator can call up any required drawing/configuration at will.

The CNC control system features a “MAIN MENU” list of options selectable by the user. Menu selections include selection of manual or automatic operation, entry of bend sequence, save or delete library sequences, select diagnostic mode or system utilities.

The diagnostic mode displays input/output signal conditions for all operations of the control and machine and enables rapid isolation of any problems by an electrician or any non-computer oriented technician. System utilities allow the system parameters to be changed and access is guarded by use of a password.


Maximum bend angle 180º + 15º Overbend Allowance
Hydraulic drive, standard 15 HP
Bend arm speed, (max.) adjustable 3.8 RPM
Plane of bend Continuous either direction, rotation 0 – 359.9º
Degree of bend Resolution 0.1º , Repeatability ±0.1º
Plane of bend Resolution 0.1º , Repeatability ±0.1º , Speed 10 RPM
Distance between bends Resolution 0.01º , Repeatability ±0.01º , Speed 360 IPM
Controls 3-axis CNC and Manual DOB (2 stops), DBB and POB dial positioning
Approx. shipping weight, (less oil and tools) 5800 lbs.


Capacity CL-300 HD


Round Tube –
25,000 psi-YP, non-ferrous 4” X .203”
40,000 psi-YP, ferrous 4” X .109”
60,000 psi-YP, stainless steel 4” X .065”
Schedule 80, steel pipe, IPS 2-1/4

(2.875” X .276”)

Round bar, mild steel 2 -1/4”
Centerline radius, (max.) std. 12”
Tube length over mandrel, (std.) 10’

Standard Features

  1. Automatic lubricator slides and
  2. Swinging arm safety
  3. I.C Standards.
  4. Hardened and ground
  5. Hard steel toggle pins on hard steel
  6. Heattreated alloy spindle on taper roller
  7. Low noise

Accessories and Options

1. Bend arm clockwuse or counterclockwise rotation.
2. Mandrel extrator.
3. Wiper die support.
4. Direct acting pressure die.
5. Pressure die boost.
6. Drop away clamp.
7. Draw compound mandrel injector.
8. Vertical die closer.
9. Overarm support.
10. Extended bed length.
11. Extended centerline radius.
12. Oscillating Mandrel.
13. Safety mats.
14. Movable safety post.
15. Water cooled spindle for hot bending.
16. Addtional HP.