Presses For Locks

What types of locks can be manufactured with this punching machine?

The Nargesa PI85 hydraulic punching machine allows the production of European profile locks that require a cylinder and handle, mainly used on metal doors made from square or rectangular tubing.

Types of locks that can be manufactured:

Standard locks with cylinder and handle
- It punches the mortise, the cylinder hole, and the handle hole.
- Compatible with mortise locks on metal doors.
Locks with combined perforations
- You can punch:
  - Only the handle hole,
  - Only the cylinder hole,
  - Or both in the same operation.
- Ideal for adapting to different lock models or door configurations.
Locks used in:
- Residential metal doors.
- Industrial doors.
- Pedestrian access doors or large gates.
- Grilles, fences, gates, and security barriers.
Compatible models (popular brands):
- Tesa, Lince, MCM, Serraller, among others.
- According to Nargesa’s tests, the machine fits more than 85% of the models on the market.

In summary, the PI85 allows complete lock punching in seconds, with professional quality and no need for post-machining. It is especially useful for manufacturers working with standard metal profiles in series.

Can the machine switch dies for different formats?

Yes, the Nargesa PI85 hydraulic punching machine allows for quick and easy die changes to adapt to various tube formats and thicknesses.

Die exchange:

There are specific dies for tubes of:
- 35x35 mm,
- 40x40 to 40x80 mm,
- 50x50 to 50x80 mm.
Each die is available for 1.5 mm or 2 mm thicknesses depending on the type of tube used.
The die change takes only a few minutes, enabling high versatility and productivity in continuous work or workshops that handle various tube sizes.

This makes it a machine adaptable to a wide range of locks and metal structures.

What is the estimated die lifespan?

The estimated lifespan of the Nargesa PI85 punching dies depends mainly on three factors: the material being punched, the frequency of use, and the maintenance applied.

Approximate die lifespan:

Under normal operating conditions (carbon steel, 1.5 to 2 mm thickness, continuous production), each die can easily exceed 15,000 to 20,000 punching cycles without significant loss of precision.
When working with stainless steel or harder materials, lifespan may decrease, though it remains acceptable if periodic sharpening is done or cutting parts are replaced as they wear.
Dies are made from high-strength steel, hardened and precisely machined, ensuring long durability even in demanding industrial environments.

Basic maintenance like cleaning, lubrication, and proper storage helps significantly extend the die's life.

Is it suitable for producing large series of parts?

Yes, the Nargesa PI85 hydraulic punching machine is particularly suitable for series production of parts. In fact, it was designed with this purpose in mind.

Advantages for large series:

Very high productivity: reduces the lock mortising and punching time from 30–45 minutes to less than one minute per tube, allowing for continuous and sustained production.
Repeatable precision: all punched pieces are exact and uniform, eliminating errors and rework.
Quick die change: the system allows easy die replacement to adapt to different formats with no downtime.
Flexibility in configurations: combinations of cylinder and handle can be made as needed, adapting to different types of locks.

Because of all this, many companies use it not only for their own production but also to supply pre-punched tubes to third parties, demonstrating its effectiveness in medium- to high-volume production lines.

Does the machine include a safety system for the operator?

Yes, the Nargesa PI85 hydraulic punching machine includes a built-in safety system to protect the operator during use.

Safety system:

Safety pedal: The machine is operated with a foot pedal, keeping the operator’s hands free and away from the punching area.
Controlled hydraulic operation: The pressure and speed of the hydraulic system are designed to be safe and stable throughout the operation.
Robust and enclosed design: The work area is structured to prevent accidental access to hazardous zones while in operation.
CE compliant: Like all Nargesa products, the PI85 is manufactured according to European safety regulations for industrial machinery.

Together, these features make the PI85 a safe machine to operate even in intensive production environments.

What hydraulic pressure does the punching machine reach?

The hydraulic pressure achieved by the Nargesa PI85 punching machine is 3 tons of force.

This pressure is sufficient for fast and accurate mortising and punching on steel tubes (even stainless) with 1.5 mm and 2 mm thicknesses.
It allows working with tubes up to 50 x 80 mm, maintaining the precision needed to fit 85% of locks on the market, without the need for additional trims or covers.

It is a suitable force for intensive production, offering high durability of the hydraulic system and a professional finish in every operation.

Does maintenance require specialized personnel?

Not necessarily. Maintenance of the Nargesa PI85 hydraulic punching machine does not require highly specialized personnel, as it is designed for simple and practical industrial use. However, it is important to follow key recommendations:

General maintenance that can be done by the operator:

Periodic cleaning of the work area and dies.
Regular checking of hydraulic oil levels.
Lubricating moving parts according to the manufacturer’s manual.
Inspecting hoses and connections to prevent leaks.

When to call specialized personnel:

To replace or repair the hydraulic system if pressure loss is detected.
In case of electrical faults in the control panel.
If precise die calibration or advanced technical adjustments are needed.

In summary, basic maintenance can be performed by the user, but qualified technical assistance is recommended for major repairs or work on the hydraulic system.

Is it possible to customize dies according to the client’s design?

Yes, it is entirely possible to customize the dies of the Nargesa PI85 hydraulic punching machine according to the client's specific design.

Nargesa offers the option to manufacture custom dies to fit locks or formats not found among standard models. This is especially useful for manufacturers working with:

Custom-designed locks or special models.
Specific safety regulations or dimensions.
Parts with non-standard perforations (different center distances, special shapes, etc.).

To develop a custom die, typically required:

A physical sample of the lock or punched tube.
Or a detailed technical drawing with exact measurements of the mortise, handle, cylinder, and lock entry.

Once received, Nargesa’s technical department studies the feasibility and manufactures the specific die, ensuring compatibility with the PI85.