Being able to do both infeed (plunge rolling) and thrufeed (continuous rolling) are standard features for hydraulic thru feed thread rolling machine.Thread rolling machines are used to produce screws, bolts, and tools.

UM-40 (A) -

Specification

UM-40(A) Hydraulic Thru-Feed Type Thread Rolling Machine

Specially built for high-yield rolling of Ø6 - Ø40mm small-to-medium threads, fasteners, and automotive shaft parts.

Advantages

  • Thru-Feed / In-Feed
    Built-in switch allows easy adjustment between short-part In-Feed rolling and long-workpiece Thru-Feed rolling. It offers great production flexibility and multi-purpose use.

  • Powerful Hydraulics & Strong Structure
    The right rolling spindle slide is driven by hydraulic power, ensuring precise positioning and strong, accurate force. The entire machine body is made of FC-25 high-strength cast iron, treated with tempering to eliminate stress, making the structure durable and long-lasting.

  • Rigid Square Slide Ways
    The advance and retreat slides use a square rail design, processed with high-frequency induction hardening and precision grinding. Under heavy pressing force, it stays precise without jumping, ensuring long-term processing stability and high accuracy.


Self-Made Gearbox

This machine is specially equipped with a dedicated gearbox independently developed and manufactured by us.

  • High Torque Output:
    Gears undergo precision heat treatment and grinding. It delivers strong thrust even at low speeds, easily handling hard material processing.

  • Multi-Stage Speed Shift:
    Provides flexible speed changes to perfectly match the required speed for different materials and thread pitches.

  • Super Quiet & Durable:
    Internal gears mesh precisely for smooth and quiet operation. This significantly reduces power loss and greatly extends the life of the gearbox.


Applications

  • Precision screws and bolts rolling

  • Automotive and motorcycle parts and shafts

  • Mechanical hardware tools

  • Set screws and general thread / straight knurling

Capacity \Model

UM-40(A)

UM-40

Work piece diameter(mm)

Ø6 ~ Ø40

Axial pitch for ISO threads(mm)

  0.8P ~ 4.0P

Length of thread rolling(mm)

Plunge rolling(In feed)：148

 Thru feed rolling：     no limited    

Spindle speed(r.p.m_)

30, 45, 55

Thread rolling die(mm)

Diameter

Ø180

Ø150

Bore

Ø54

Length

35, 70, 100, 150

Keyway

10 X 5

Distance of the rolling spindles(mm)

55~230

125 ~ 200

Output (pieces/min)

4 ~ 20

Swivel of roll-axis

± 4°

Main power motor

10 HP (7.5 kw)

Hydraulic motor

5 HP (3.7 kw)

Max rolling pressure

27

Net weight (Approx.)(kg)

2,300

Gross weight (Approx.)(kg)

2,500

Overall dimension(mm) 

2100 x 1400 x 1800 

Shipping measurement (mm)

2210 x 1510 x 2100