DEPP industrial measuring systems and encoders
Rugged industrial linear encoders and digital readout systems from DEPP provide dependable coordinate feedback across machine tools and manufacturing equipment.
DEPP EP-15 Series inductive ball grid linear scales
Heavy-duty inductive ball grid linear scales DEPP EP-15 provide high-precision positioning across metalworking machine tools. The rugged sealed alloy profile with IP67 protection withstands hot metal chips, cutting fluids, and lubricants during intensive workshop machining.
- Rugged sealed alloy body rated IP67 shielding against abrasive metal workshop dust
- Precision ball grid measurement matrix providing accuracy ratings of 0.015 mm per m
- Interfacing with E02032 reader heads and external digital readout signal adapters
- Length selection matching travel axis stroke and machine bed mechanical dimensions
DEPP EP-6 Series micro ball grid linear encoders
Compact ball grid linear encoders DEPP EP-6 deliver precision position feedback within tight mechanical envelopes of machine tools. The slim body cross-section allows convenient installation directly on lathe cross slides and confined linear guide mechanisms.
- Slim body profile enabling convenient mounting on lathe cross slide assemblies
- Robust fluid-tight sealed structure resisting severe machine vibration stresses
- Direct connectivity with micro reader head assemblies and signal pulse units
- Dimensional selection tailored to slide travel stroke and mounting drawings
DEPP SPA15 Series ball grid signal converter units
Electronic signal converter modules DEPP SPA15 translate primary position pulses from ball grid reader heads into industry-standard feedback formats. The unit generates differential TTL and RS-422 quadrature signals for seamless machine CNC and PLC integration.
- Quadrature TTL and differential RS-422 signal output for industrial systems
- Noise-immune shielded metal enclosure maintaining signal integrity in plants
- Broad compatibility with standard machine tool CNC and PLC feedback inputs
- Selection based on operating voltage ratings, connector pins, and frequency
DEPP D3000 Series digital readout display consoles
Digital readout display units DEPP D3000 offer multi-axis coordinate monitoring across manual milling machines, lathes, and grinding equipment. Bright high-visibility LED readouts and a tactile keypad assist operators in setting reference datums and offsets.
- Two and three axis display layouts with bright high-contrast numerical LEDs
- Integrated machining functions including pitch circle bolt hole calculations
- Non-volatile memory retaining up to two hundred auxiliary coordinate datums
- Configuration options matching axis numbers, swivel brackets, and connectors
DEPP D5000 Series precision digital readout units
Precision digital readout units DEPP D5000 integrate multi-point non-linear error compensation routines to neutralize mechanical errors along long machine axes. The console enables high-accuracy positioning across boring mills, vertical lathes, and gantry tools.
- Segmented error compensation offsetting linear inaccuracies of machine guideways
- Enhanced calculation routines dedicated to boring and heavy milling routines
- Industrial electronic architecture engineered for vibration and heat tolerance
- System configuration matched to scale resolution and machining tolerances
DEPP EA5 Series optical linear encoders
Optical linear displacement scales DEPP EA5 employ high-resolution precision glass gratings to achieve sub-micron position feedback. The extruded aluminum profile with resilient lip seals protects the internal optical scanning assembly during finishing runs.
- Fine optical glass grating enabling sub-micron resolution position tracking
- Resilient elastomer lip seals guarding optical tracks against airborne debris
- Dynamic scanning head travel velocity ratings extending up to 60 meters per min
- Profile dimensioning selected according to worktable stroke requirements
Electromagnetic measurement principle of ball grid linear scales
Ball grid linear scales manufactured by DEPP utilize electromagnetic induction across precision steel spheres to determine slide displacement. High-precision steel balls of uniform diameter are encapsulated inside a sealed non-magnetic tubular profile.
A scanning reader head traverses along the exterior, sensing electromagnetic variation as it moves past consecutive spheres. The absence of fragile glass components prevents scale fracture from heavy mechanical shock or severe machine vibration.
The measuring track maintains continuous coordinate stability even when directly exposed to cutting coolants and lubricating oils.
Environmental resilience of sealed linear encoders in machining shops
Metal cutting operations across lathes, boring mills, and machining centers generate aggressive coolant spray and hot metal chips. Inductive linear encoders DEPP EP-15 feature an IP67 sealed design that prevents coolant droplets and abrasive swarf from reaching internal sensing elements.
The heavy-wall protective alloy profile acts as a structural guard, protecting sensing coils from wear and incidental work impact. This structural robustness enables dependable operation without frequent teardowns or periodic optical cleaning of machine axes.
Interfacing position sensors with machine CNC and readout units
Interfacing DEPP ball grid scales with numerical controllers and digital readouts is achieved via SPA15 and SPA6 converter modules. The converter receives differential signals from the reader head and synthesizes industry-standard TTL or RS-422 quadrature pulses with selectable interpolation ratios.
This architecture provides seamless connectivity with Fanuc, Siemens, Heidenhain, Syntec, and GSK control systems. Double-shielded polyurethane cables prevent noise interference induced by nearby variable frequency spindle drives.
Segmented error compensation across machine tool guideways
Large-scale machine tools with extended axis travels often exhibit mechanical pitch errors and minor guideway geometry deviations. Digital readout consoles DEPP D5000 and D6000 incorporate segmented linear and non-linear compensation firmware.
The axis travel is divided into discrete calibration increments, with compensation values derived from laser interferometer measurements. The readout dynamically adjusts displayed coordinates in real time, elevating positioning accuracy on large boring mills and gantry machines.
Mounting geometry and alignment procedures for reading heads
Accurate mechanical alignment of the reading head relative to the DEPP scale body ensures optimal coordinate reading reliability. When mounting an E02032 reader head to a machine carriage, parallelism along the travel guideway must remain within 0.1 mm across the stroke.
The required working air gap between head and scale is established using precision alignment shims supplied in the hardware kit. Built-in flexible wiper seals sweep away adhering chips and fluid droplets during machine axis traverse.
Diagnostic routines and troubleshooting of digital coordinate displays
When coordinate readouts show instability or diagnostic codes, technicians follow structured troubleshooting procedures on the DEPP measuring loop. A missing signal indication points to cable damage or coolant ingress into connector pins.
Coordinate display fluctuations or unexpected jumping by multiples of sphere diameter indicate grounding interruptions in the outer shielding braid. Restoring proper cabinet grounding and cleaning connector terminals restores standard coordinate tracking without scale removal.
DEPP 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 DEPP and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.
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Documents and sources
- Official portal of Hangzhou DEPP Measuring Equipment — precision measurement equipment directory
- EP15 Series inductive ball grid linear encoders — technical specifications and reader heads
- SPA15 Series ball grid signal converters — interface guide for CNC and PLC integration
- D3000 Series multi-axis digital readout display consoles — coordinate functions and settings
- D5000 Series precision digital readouts — segmented linear error compensation routines
- EP6 Series micro ball grid linear encoders — dimensions for compact machine tool axes
- EA5 and ES5 Series optical linear encoders — sub-micron glass grating position feedback
- Hangzhou DEPP company background — production facilities in Linping District Hangzhou
