SPOTTING PRESSES FOR ASSEMBLY, ADJUSTMENT, CHECKING AND REPAIR OF MEDIUM AND LARGE DIES

YOUMIL 3525 Compact Series

Millutensil has taken a further step forward with the YOUMIL 3525, a revolutionary press that combines two essential functions in one machine: die spotting and pre-series or small series production.
The name itself, “YOUMIL,” suggests complete customization to the customer’s needs, while the real quantum leap lies in the ability to combine efficiency and versatility. To achieve this, the press was designed with a revolutionary technical scheme: four uprights, movement of the upper platen by worm screws, and a new closing system exerted by five hydraulic cylinders acting directly from below on the lower platen, with a clamping force of up to 2500 tons. With its high clamping force and automatic cycle programming, the YOUMIL 3525 transforms into a full-fledged production press, suitable for pre-series or small-batch production, with unprecedented efficiency. This significantly reduces the need for expensive production presses, optimizing time and investment costs.

The MIL/COMPACT series die & mould spotting presses are a riveting innovation to optimize adjustments in the die casting sector.
They feature the extensible plate exit on the backside, towards the longest side of the gap between the columns. In this sector moulds are relatively small, but they are often equipped with internal sliding beds that are driven by very long auxiliary cylinders, considerably increasing the total dimensions of the mould overall.
Therefore, the MIL/COMPACT series provides significant benefits:

Carrying out adjusting operations on a smaller and therefore cheaper press with subsequent reduction of the investment amortization period;
Handling of moulds with very long auxiliary cylinders without the need to disassemble them, providing substantial time-saving gains;
Possibility to design the plate exit on the backside with special travels.

Approximatly 6.5 meters high from the floor level, it is equipped with a 3.5 x 2.5 meters plate, with a load capacity of up to 55,000 Kilograms on the lower plate, and 25,000 Kilograms on the upper plate, tilting up to 90°/180°.

Max. clamping force	25,000 kN
Max. opening force	1,000 kN
Max. load capacity on lower plate	55,000 kg
Max. load capacity on upper plate	25,000 kg

Optionally the max. clamping force can be increased to 25,000 kN.

All components are purchased from well-known manufacturers, such as for example: hydraulic system Bosch-Rexroth, Hawe; electrical system Siemens, Schneider Elektrik, Phoenix Contact, Weidmüller. This guarantees a general good functionality of the press, and a quick procurement all over the world.

EC Declaration of Conformity and compliance with safety provisions in accordance with the current EC standards.

PLATENS MOVEMENTS

UP-DOWN MOVEMENT, PARALLELISM CONTROL AND ANTI-FALL SYSTEM

Up-down with 4 ball screws driven by brushless motors for upper platen parallelism control.

Locking the mobile structure on the columns with hydraulic jaws that engage in the column grooves.

Anti-fall system is ensured by two ways:

The first intervenes on the columns by means of hydraulic jaws, which engage in their grooves, and keeps the machine in position even in the event of sudden power failures.
The second consists of the brakes on the brushless motors that drive the ascending and descending screws. They are engaged on the de-energized machine and intervene in the event of sudden power failures.

LOWER PLATE

The lower plate is extensible, translation with electric engine.

Parallelism of the lower platen: the lower platen rests on 4 height-adjustable blocks, in such a manner that any planarity errors can be corrected.

The system guarantees high repeatability accuracy equal to ± 0,04 mm.
It allows to draw the lower part of the die or mould out of the press into an effortless working position

UPPER PLATE

For optimal access to the mould, the press upper plate can be tilted forward by 100°/180°.
By tilting the press plate on the short side, the operator can work at an optimal height, normally standing, without having to use unstable ladders, platforms or lifting equipment, which are often necessary in case of presses with long side rotation.
Moreover, with tilting rotation on the short side, the overall press height is considerably reduced.

The advantages compared to other solutions with long side rotation

Better working ergonomics, granting the operator to have easy access to any mould part without the use of platforms;
Much shorter total press height above ground, which often reduces excess costs for foundations;
Wide base press structure with greater stability;
The two mould-halves are located on the same side, so operators have an overview of the whole mould and can work more comfortably

VIDEO

Features

Press with 4 chrome-plated alloy steel columns, structures made of welded and normalized steel, to guarantee high rigidity and bending resistance.
5 hydraulic cylinders under the lower plate actuation guarantee an optimal distribution of surface pressure.
Easy clamping force setting, by means of the touch panel.
Room-saving arrangement of the hydraulic power unit with considerable noise reduction in press upper part.
The hydraulic power unit can be easily and safely reached by means of a specific ladder.

HYDRAULICS

The hydraulic power units are oversized compared to standard models of similar presses and are therefore positioned externally, mounted on the floor and connected to the press itself.
Moreover, the extensive press housing considerably facilitates cleaning and routine maintenance.

The hydraulic system is manufactured with components by the main international companies such as BOSCH, REXROTH, HAWE etc. in order to guarantee:

high performance
long operating life
easiness to find spare parts all over the world

GREEN MODE

Use of the gravity principle during the entire down stroke.
By means of a special low-pressure circuit, oil is sucked from the tank. This allows a higher speed, without heating the oil, with a definitively low energy consumption.
After 100 seconds out of service, the hydraulic unit turns off in order to save energy. By pressing the specific push-button, the group is activated and hydraulic pressure is immediately restored.
Energy-efficient and low-consumption LED lamps for the optimal lighting of the working area.

CLAMPING FORCE

5 hydraulic cylinders, positioned in the basement, apply the clamping force ‘from below’, ensuring optimum distribution on surface pressure.

The presses of the youmil series, compared to the traditional ones, can develop a clamping force equal to more than 4/5 times.

QUALITY COEFFICIENTS

MILLUTENSIL has developed numerical coefficients to estimate the quality of a press, they are called:
• β Coefficient
• γ Coefficient
The perfect press does not necessarily have to keep straight when pressing, but rather must exert the same pressure on all parts of the mold.
β Coefficient= 1 means that all points on the mold faces touch themselves. If it is less than 1, then some points do not touch.
γ Coefficient= 1 means that all points on the mold faces have the same pressure. If it is less than 1, then the pressure is not homogeneous.
QUALITY COEFFICIENTS
(NOTE1): the perfect press is the one in which all points of the mold touch at the same pressure (β=1 and γ=1)
(NOTE2): usually in real life, a good quality pressing starts at values (β = 0.90 and γ = 0).
Already for values of (β = 1 and γ = 0.1) the pressing quality can be considered more than optimal.

CONTROL PANEL

Siemens S7-1500 control easy to program and use
Pushbutton station equipped with modern Siemens TP1200 MULTIPANEL TOUCH PANEL.

The pulpit station is equipped with a touch panel with a user-friendly graphics to simplify the use of the spotting press. All working movements and functions are graphically shown on the display.

Two-hands command.
Due to security reasons, some functions can be activated only through traditional buttons (i.e. downstroke must be carried out with two-hands, in compliance with EU-UL-CSA safety legislation).

Uncluttered, clear and ergonomic, the panel offers many advantages as well as vast flexibility in customizing features, including command of the auxiliary cylinders.

In the pulpit station a new Siemens multi-touch ITP 1000 can be embedded (OPTIONAL).
This new Siemens multi-touch ITP 1000 is supported by a dedicated app called MyMILL© App, that has been developed by Millutensil as a result of the ongoing cooperation between Millutensil and their customers.

speed control and setting

The upper plate CLOSURE/OPENING speeds can change automatically thanks to a particular system developed by Millutensil and defined in LEVELS (L1, L2, L3).

The setting of levels (L1, L2, L3) considerably facilitates adjusting operations.
The advantages are:

maximum repeatability and safety of movements;
reduction of the risk of accidental impacts.

After fixing the mould, the operator can set, as he deems fit, three different levels according to which the press will automatically apply the corresponding speed changes (L1, L2, L3).
These levels will remain stored can be applied during all opening and closing operations.
The maximum pressure set will be reached in L1 only, when the mould is completely closed.

Operator panel for the setting of levels:
Thanks to this modern system, it is possible to set several speeds (fast during the approaching phase, medium during the working phase and slow during the final mould closing phase).

EQUIPMENTS FOR THE PRESS

LIGHT CURTAINS: ACCIDENT-PREVENTION PROTECTION DEVICES

The operator safety is ensure by protection devices with light barriers located in the areas that are partially out of the operator’s sight.

The system is made of light barriers operated by a specific safety module controlled by the PLC.

ELECTRICAL CABINET

The electrical panel of MILLUTENSIL presses is located in a dedicated cabinet and separated from the press.
All electrical boards and cards, supplied mainly by SIEMENS, are safe in compliance with CE, UL, CSA standards.

OPTIONAL EQUIPMENTS FOR THE MOULDS

Hydraulic power unit

Separate hydraulic power unit on trolley with connections for hydraulic cylinders (4+4) (option)

A separate and standalone hydraulic power unit on trolley has been designed, in order to test the movements of slides and hydraulic cylinders. This trolley is equipped with a tank, and it is directly connected to the press control panel, with which it is possible to settle up to 4 pairs of hydraulic cylinders (4 inputs and 4 outputs), either individually or synchronously. Each connection pair is equipped with a standalone pressure regulator and an analogue pressure gauge.

The trolley can be provided in a completely stand-alone version with its own dedicated control panel, so that it can be used not only with the spotting press.

Upon the customer’s request, it is possible to configure the marks of the moulds with the spotting press, in order to test the correct functioning of the sensors and of the hydraulic cylinders. We can supply special cycles for the movement of slides/hydraulic cylinders.

The standard trolley is equipped with a pump with a delivery of 8 Liters/min. and a 2.2 kW engine. A customized trolley version is characterized by a pump with a delivery of 40 liters/min. and 11/15 kW engine. A special version for operation with water-glycol mix is also available.

PRE-SERIES OR SMALL-BATCH PRODUCTION

The YOUMIL press by Millutensil is designed to perform pre-series and small-batch production runs directly on the press, providing an essential advantage for manufacturers requiring initial production phases that mimic full-scale manufacturing.
With enhanced clamping force and precision engineering, YOUMIL can simulate real production conditions, ensuring that molds are fully validated and capable of meeting quality standards before mass production.
This functionality not only accelerates the production timeline by identifying potential issues early but also allows for cost-effective manufacturing in limited quantities, making it ideal for testing, validation, and initial runs of new product lines.

Small-batch production runs on the YOUMIL press can be managed either manually by an operator or with the assistance of a robotic arm.
This flexibility enables manufacturers to choose the most efficient workflow for their needs, allowing for seamless integration into automated systems or manual oversight for greater control during limited production phases.

TECHNICAL ASSISTANCE

Diagnostic system

Integrated diagnostic system

MILLUTENSIL die & mould spotting presses are equipped with a specific and exclusive diagnostic program. Any failures occurred during operations is displayed on the control display, where the affected point is indicated. As a consequence, the machine downtime is minimized.
Main advantages:

Minimization of down time,
Quick and easy troubleshooting,
Considerable service costs reduction, especially after the warranty period.

E-Won modem
MIL-Series spotting presses are equipped with a E-Won modem, so that our Millutensil technicians can remotely operate on the spotting press to fix it.
The remote assistance can be easily performed thanks to the hotspot of a mobile phone and a password that is provided in case of need.

Wireless mobile panel
Thanks to the tablet Siemens multitouch ITP 1000 (optional) and its MyMILL© App (optional), remote assistance is simplified, since the tablet can be used to initiate the remote assistance call.

Training

For a complete use of the machine, we provide support and training to technicians during installation on site.

TECHNICAL DATA

Description		YOUMIL3525
– Size of press plates	mm	3500 x 2500
– Max. clamping force	kN	20000
– Max. increased clamping force	kN	25000
– Max. opening force	kN	1000
– Max. load capacity on lower plate	kg	55000
– Max. load capacity on upper plate	kg	25000
– Min. – max. opening between platen – Upper platen stroke – Lower platen stroke	mm	250 – 3,000 2,550 200
– Distance between columns	mm	3600
– T slots in the press plates for mould clamping	DIN.650	T.28
– Ø of centring hole in lower plate	mm	Ø 260
– Ø of centring hole in upper plate	mm	Ø 260
– Fast speed downhill	mm/sec	60
– Working speed downhill	mm/sec	8
– Power of main ENGINE	kW	85
– Electrical connection	V / Hz	480V, 60Hz., 3 Phase
– Machine weight	kg~	100.000*

LAYOUT

Layout 054.904.03017

Pit h=1,700mm
Lower plate from the floor h=80mm,
Tilted Upper plate by 180° from the floor h=580 mm