FIBRO — Rotary Indexing Tables and Precision Tooling Components

FIBRO high precision rotary indexing tables, direct drive NC tables and die set components designed for metal cutting, automated assembly and high-duty toolmaking.

FIBROTOR Cam-Driven Rotary Indexing Tables

FIBROTOR EM and ER rotary indexing tables feature globoidal cams for rapid positioning in automation. Rigid preloaded table bearings handle tilting moments up to 25 kNm with high accuracy. Regular overhaul involves renewing cam followers, radial shaft seals, and drive couplings.

Globoid cam drive with constant preload for smooth and shock-free indexing
Table top diameters from 160 mm to 3000 mm for assembly and welding automation
Axial payload capacity up to 15 tons with minimum indexing time from 0.16 s
Replaceable cam follower rollers, radial seals and maintenance wear kits

FIBROPLAN NC Precision Rotary Milling Tables

FIBROPLAN NC and NC1 rotary tables deliver continuous multi-axis milling and fine angular positioning. The duplex worm drive mechanism allows backlash tuning throughout operation. Scheduled overhaul includes renewing worm gear sets, optical encoders, and hydraulic clamp seals.

Adjustable duplex worm drive eliminating tangential backlash during milling
Pneumatic or hydromechanical table clamping designed for heavy cutting forces
Positioning accuracy down to plus-minus 2 arc seconds with angular encoders
Replaceable bronze worm rings, precision axial bearings and seal assemblies

FIBROTAKT High-Torque Indexing Tables with Hirth Gearing

FIBROTAKT indexing tables handle extreme cutting loads using face-to-face Hirth gear rings for mechanical locking. The table top lifts slightly during indexing and locks with up to 120 kN clamping force. Maintenance covers lifting cylinder seals, guide segments, and gear teeth.

High-rigidity Hirth ring coupling providing rigid mechanical tool locking
Repeat positioning accuracy down to plus-minus 1 arc second under full load
Hydraulic or pneumatic table lifting mechanism for smooth index rotation
Replaceable Hirth gear tooth segments, cylinder packings and stroke sensors

FIBRODYN Direct Torque Drive and FIBROMAX Heavy Tables

FIBRODYN DA direct drive tables incorporate built-in torque motors without gearing, reaching high rotational speeds. FIBROMAX heavy tables hold workpieces up to 400 metric tons. Maintenance includes cooling fluid jackets, optical angle encoders, and emergency brake friction linings.

Synchronous direct torque motor drive eliminating gear backlash and play
Integrated liquid cooling jacket for thermal stability under high dynamics
Payload capability up to 400 tons on heavy FIBROMAX gantry machine setups
Replaceable optical position measuring heads, brake pads and coolant hoses

FIBRO Nitrogen Gas Springs and Manifold Systems

FIBRO nitrogen gas springs in series Standard 2480, Powerline 2487 and Compact 2486 provide forces from 250 to 100,000 N in metal stamping dies. The WPM wireless system tracks pressure and temperature. Servicing involves rod packings, guide bushings, and high-pressure charge fittings.

Force range from 250 N to 100 kN with stroke lengths from 7 mm to 300 mm
Patented safety features protecting against overpressure and piston overstroke
Hose and manifold plate connections for linked tool pressure distribution
Replacement seal kits, charging adaptors and digital pressure testing gauges

FIBRO Guide Elements, Punches and Die Set Components

FIBRO guide assemblies feature pillars 202.19, bronze bushes 2051.32, and ball cages for stamping dies. Heavy wear punches 2711 and matrix dies DIN 9845 withstand millions of hits. Regular tool servicing involves replacing ball retainers, sliding bushings, and strip lifter pins.

Precision guide pillars and bushes manufactured to fine tolerance h3 and js4
Ball and roller guide cages providing zero-clearance precision stroke motion
Stamping punches and matrixes in HSS tool steel and powder metallurgy grades
Replaceable sintered bronze bushes, cage retainers and precision die inserts

FIBROTOR Cam Drive Indexing Table Operation and Maintenance

FIBRO rotary indexing tables including the cam-driven FIBROTOR and worm-driven FIBROPLAN deliver high precision positioning and heavy payload capacity for machine tool automation. For FIBROTOR EM and ER units, the globoid cam mechanism operates with constant preload against cam followers.

Routine inspection requires monitoring grease quality and checking motor drive belts. If indexing time exceeds the 0.16-second specification or vibration develops during station locking, technicians adjust cam shaft bearing preload and renew shaft seals.

Preloaded radial bearings absorb heavy tilting moments during welding and assembly operations without losing angular accuracy.

Backlash Adjustment for FIBROPLAN Duplex Worm Gears

FIBROPLAN NC and NC1 rotary tables employ duplex worm gearing with variable pitch threads for backlash elimination during heavy cutting. During scheduled maintenance, backlash is measured using Heidenhain angular encoders and bidirectional table test steps.

Backlash compensation is performed by axial relocation of the worm shaft via precision shims until nominal backlash within 3 to 5 arc seconds is restored. Technicians verify bronze worm ring wear, smooth rotation at fine feed rates, and hydraulic clamping reliability.

Shaft seal rings and lubrication station filter inserts are renewed during overhaul.

Inspection and Tooth Engagement of FIBROTAKT Hirth Rings

FIBROTAKT heavy-duty indexing tables utilize face-tooth Hirth rings providing rigid mechanical interlocking with up to 120 kN clamping force. Maintenance involves verifying table top lift height by the internal piston, which must maintain 3 to 5 mm clearance to avoid tooth contact during rotation.

Tooth contact pattern is checked using bluing paste to ensure at least 80 percent tooth flank contact across all segments. Hydraulic clamp pressure and cylinder rod seals are tested under nominal system pressure.

Worn gear ring segments, polyurethane wipers, and position sensors are replaced as matched sets.

Nitrogen Gas Spring Maintenance and Pressure Monitoring

FIBRO nitrogen gas springs spanning series Standard 2480, Powerline 2487, and Compact 2486 operate under initial nitrogen charging pressures up to 150 to 180 bar. Routine pressure inspection is conducted using digital charging blocks or integrated wireless WPM sensors.

A pressure drop exceeding 10 percent indicates seal degradation or polished rod damage.

During refurbishment, the cylinder is depressurized through the safety port, disassembled, fitted with polyurethane rod seals, guide bushings, and charge valves, and recharged with high-purity dry nitrogen to manufacturer force tables.

Guide Pillar and Bush Fit Tolerances in FIBRO Die Sets

FIBRO press tool standard components include guide pillars 202.19 manufactured to tolerance h3 and bronze sliding bushes 2051.32 with embedded graphite plugs. In production tooling, guide clearance is kept to a strict minimum to prevent die misalignment and cutting punch chipping.

Bore diameters are measured with internal cylinder gauges, and pillar roundness is checked at multiple positions along the stroke. Stamping punches 2711 and matrix dies DIN 9845 are inspected for cutting edge chipping and guide shank wear, maintaining proper press fit alignment.

Thermal Stability and Cooling in FIBRODYN Torque Motor Tables

FIBRODYN DA direct drive rotary tables integrate synchronous torque motors without gear reduction, achieving high rotational speeds for dynamic multi-axis machining. Maintaining operational accuracy requires clean liquid cooling channels to prevent thermal expansion of the motor stator.

Maintenance involves verifying coolant flow rates, inspecting optical scanning heads for particulate buildup, and measuring pneumatic brake pad friction wear. Coolant line fittings and emergency brake discs are inspected to ensure positioning repeatability within sub-arcsecond tolerances.

FIBRO and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of FIBRO and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.