SIMEC - NPG 2200 SX

Features

Power needs solid foundations

The NPG 2200 SX embodies the strength of SIMEC engineering: a substantial machine bed and a robust load-bearing structure form the heart of the machine, providing stability throughout the processing system. Strength translates into precision: structural rigidity helps minimise vibrations and supports the polishing heads during operation, promoting a uniform finish even under demanding working conditions. Impressive in structure. Precise in performance. SIMEC in every detail.

Basament

The base of the NPG 2200 SX is machined from a single steel block using CNC technology. Thanks to computer-aided design, the base ensures vibration-free operation, superior polish quality, quiet operation, and a long service life.

Interchangeable decks

In machines like these, designed to handle extremely high production rates, wear caused by the conveyor belt sliding across the worktable can pose a potential threat to the optimal performance of the polishing machines. To prevent this, SIMEC equips its granite machines with thick, continuous-band worktables, on which special interchangeable worktables are installed.

Bridge’s movement

The bridge’s movement is driven by two brushless motors, which transmit motion to the pinions via generously sized shafts. The connection between the gearmotors and the transmission is achieved through conical expansion couplings, which ensure a precise, rigid, and reliable connection. The beam slides on roller shoes in an oil bath, protected by stainless steel housings equipped with labyrinth seals to ensure smooth movement, protection from contaminants, and long service life.

Belt Drive Unit

The drive unit has been completely redesigned. The new NPG features a brushless motor controlled by a sophisticated algorithm capable of detecting the optimal coverage level of the cutting heads and automatically adjusting the operating parameters, ensuring maximum processing uniformity.

Spindles

The spindles of the NPG 2200 SX polishing line were designed with particular attention to the structural and kinematic components that are most heavily stressed and subject to wear. The reduced clearance between the heads and the slab surface allows for increased operating speed and improved edge polishing quality. Other new features include removable ABS covers, which provide quick access to the drive shaft, facilitating routine inspection and maintenance.

A new experience for the operator as well

The transformation of the NPG 2200 SX is also immediately apparent from an aesthetic point of view. The machine has undergone a significant restyling, characterised by new distinctive elements and a more modern, refined design in which aesthetics and ergonomics are closely interconnected. At the heart of the new operator experience is the larger 18.5-inch touch-screen, featuring a completely new graphic interface. The physical controls have also been repositioned and reoriented to improve their visibility and readability under normal operating conditions. The result is a technologically more sophisticated machine which, at the same time, is clearer, more accessible and more intuitive in everyday use.

New electronics for controlling a more advanced machine

Such precise control requires significantly greater processing power than in the past. For this reason, the NPG 2200 SX adopts a new generation of PLCs, drives and automation electronics, together with an extensive redesign of the software. The complete program execution cycle is reduced from approximately 15 milliseconds with the previous architecture to around 2 milliseconds. This increased computing capacity enables faster response times, more precise control and real-time management of more complex workflows. The software architecture has also been redesigned according to the standards adopted on the latest SIMEC machines, improving diagnostics, maintainability and the potential for future development. The NPG 2200 SX has therefore been conceived as a platform in which mechanics and automation work together in an even more integrated way.

Evolving without losing what matters

The NPG 2200 SX represents an important step in the evolution of SIMEC polishing machines. The structural strength, movement precision, construction quality and reliability that have characterised previous generations remain at the heart of the project. Today, these qualities are complemented by a significantly higher level of control, made possible by the integration of new electronics, brushless motors, software and mechanics. The new machine is therefore defined not by one individual innovation, but by the combination of solutions working together in a coordinated way: head movement, material feed, spindle control and software management become parts of one integrated system. Added to these features are the fully workable 2,200 mm width, simplified maintenance, a new operator interface and a completely redesigned appearance. With the NPG 2200 SX, SIMEC thus takes its experience in polishing into a new technological generation, in which innovation, reliability and ergonomics work together to achieve more and more precise process control.

Cleaning unit

This special accessory cleans the slab on the top after the polishing phase. The working height is adjustable semi-automatically by means of a push button on the polishing machine. The unit is prearranged to be mounted on a motorized roller conveyor.

Device for the automatic positioning in height of the ventilation units

Automatic distribution of plastic protection cord

The automatic applicator of polymer dots BT1 is the most ecological and economical way to protect the polished surface of the slabs when they are placed and handled “in packs”. The BT1 is placed at the exit of the polishing lines and puts dots or lines of thermoplastic polymer on the polished surface of the slabs. The system can be both alternative and complementary to the traditional polyethylene film, according to the market requests.