SPIDER is a loading/unloading robot designed to handle stone slabs (marble, granite, or stone material). It can realize the “book match” process, reassembling them as they where before loading, without using rotating roller conveyor.
By using this robot on resin lines it is possible the direct loading of the slabs onto the trays. This option is extremely important in case of fragile or fractured material.
SPIDER can be supplied with GRAB system which allows, in cooperation with suction cups, safe loading of travertine slabs and fragile materials.


SPIDER for loading operation, (such as for all automatic Prometec loading machines), is equipped with a detaching device avoiding to load two or more “stuck” slabs. More over this machine uses, during the loading operation, a weighing system which reduces the risk for loading more than one slab at a time.
All the movements of SPIDER are controlled by means of inverter and by encoder, therefore all movements are extremely smooth and exact.
SPIDER is a machine easy to set up for any kind of requirements by means of a wide colors touch screen.



  • SPIDER 1200: standard model capable to serve most of processing line with needed speed and safety
  • SPIDER 54: version with increased number of suction cups designed for fragile and delicate materials typical in resin lines
  • SPIDER 80: version with maximum number of suction cups and twin vacuum pump for special materials and applications


Prometec is anyway able to design and develop customized version accordingly with client requirements.

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Max payload1200 kg1200 kg1200 kg
Single suction cup payload37,5 kg22 kg15 kg
Suction cups number325480
Suction cups covering surface2720x1400 mm2670x1510 mm2780x1760 mm
Max slab dimensions3600x2200 mm3600x2200 mm3600x2200 mm
Max widthLimited by weightLimited by weightLimited by weight
Total electric power10,75 kW12,25 kW17,75 kW
Vacuum pump capacity100 m3/h200 m3/h2x200 m3/h
Weight3.250 kg3.400 kg3.500 kg