gRAM V4

GRAM Industrial endless filament winding end effector for Industrial application

TECHNICAL DATASHEET OF GRAM V4 mono

  • “STEP-CHANGE”   weight savings from 30 up to 70% è “It is not possible to build lighter”

    FORM FOLLOWS FORCE

    Competitive Lightweight at reasonable cost

    Integration of functions by design

    Highest flexibility for winding complex 3D Structures

    Reduction of complexity, hybrid structures

  • SIMULATION driven full digital process chain

    Automated software for topology optimisation

    Generation of  bionic structures

    FE-Analysis stiffness, mechanical resistance, modal

    Consideration of miscellaneous fiber / matrix

    Generation of optimised theoretical winding path

    Computed modular programming of robotic winding path

  • First of its kind with fully integrated impregnation system on the robot

    Patented technology for process and impregnation head

    Qualification for Space flight hardware by ESA

    Multiple fiber materials (carbon, glass, basalt, natural fibers)

    Multiple type of resin (epoxy, polyester)

    No limitation in size (from few cm up to several meters)

    No autoclave needed, curing oven is sufficient

    9 axis robotised system

    Data logging for quality management system EN 9100

  • Waste reduction, no off-cut with the GRAM process technology

    Primary energy and resource savings

SPECS

Dimensions

1650 x 460 x 620 mm.

fiber material:

  • All type of fibers from 6k up to 50k or 4800 tex.

  • Max bobbin diameter:

  • standard core of Ø 76mm.

  • External Ø 250 x 350 mm.

  • 6 Bobbin load capacity.

Resin System

  • Mono-component resin system.

  • Controlled Temperature.

  • Resin tank volume: 20L.

  • Inlet and Outlet nozzle for impregnation bath.

fiber material:

  • All type of fibres from 6k up to 50k or 4800 tex.

  • Max bobbin diameter:

  • standard core of Ø76mm.

  • External Ø250 x 350 mm.

  • Fibre bobbin max weight.

types of fibres

  • Close-up of filament carbon fiber bobbin.

    Carbon

    has several advantages including high stiffness, high tensile strength, low weight, high chemical resistance, high temperature tolerance and low thermal expansion.

  • Close-up of a filament basalt fiber bobbin.

    basalt

    Natural mineral sourced, has benefits such as good tensile strength, non-toxic, resistant to UV, impact resistant, high temperature tolerance (-260 - 700 °C) and more economic than carbon, Kevlar and glass fibres.

  • Close-up of a natural flax filament fiber bobbin.

    Flax

    Plant based locally sourced fibre, is a sustainable alternative in composites. Is biodegradable, cost with has good mechanical properties, high specific stiffness, easy processability, and low density.

  • Close-up of a glass fiber filament fiber bobbin.

    Glass

    Glass made has comparable mechanical properties to other fibres such as polymers and carbon fibre.

Robot SPECS

6 axis industrial robot

Recommended payload: ABB 200kg.
(others on request)

Weight

  • Unloaded weight: 125 kg

  • Fully loaded: 140 kg

Winding Speed

25 to 200 mm/s

Supply:

  • Pneumatic Power:
    6 Bar ( low consumption).

  • Power supply:
    240V / 50 Hz / 32A /  8 kW.

Training Session on request:

  • Determination of the GRAM material card.

  • Definition of GRAM structure.

  • Definition of GRAM winding syntax.

  • Programming of Robot (ABB).

Learn directly from our team

Recommended upgrades

  • A black linear device with multiple segments, a small metallic dial, and a metal hook at one end, placed on a black background.

    robotic rail

    4 meter X-rail or supplementary axis on request

  • A metal workbench with a perforated surface and four legs, positioned against a black background.

    Work Table

    Measurement precision table,

  • A black metal cage with grid sides and a yellow control panel door handle, set against a black background.

    Safety Fence

    Development of automatize safety measures to guaranty customize and optimize work area.

  • A mechanical device with a triangular black frame and a long horizontal metallic rod, possibly a prototype or experimental setup.

    External axis

    Supplementary axis, pan / tils axis

  • Two stacked bakery ovens with black frames and white doors against a black background.

    Collaborative Robots

    Multimove for collaboration with multiple robots

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