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Multigrain dresser

Multi-grain dresser
for fast roughing and safe finishing
of conventional grinding wheels

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  • Multigrain dresser
A multi-grain dresser is a stationary multi-point dressing tool with matrix-bonded diamond grains. It is designed to open grinding wheels quickly, keep the cutting ability stable and withstand mechanical and thermal loads better than single-grain tools - especially with straight profiles and a wide working zone.
Technical inquiry for multi-grain dresser

When a multigrain dresser is the more economical choice

  • High metal removal rates in the roughing process (flat, outer round, centerless)
  • Processes where tool life and robust load capacity are more important than µm shape contours
  • When dressing rolls do not fit economically (investment/drive/setup)
Multigrain dresser
Multigrain dresser
Have the suitability for my grinding process checked

Functional principle - load distribution instead of point load

  • Overlapping engagement of several grains for mechanical relief
  • Wide effective area enables higher feed rates
  • Result: open-pored, "grippy" disc structure for stable stock removal

Exclusions (clear):
  • Not intended for rotary dressing spindles
  • Not suitable for CBN or diamond grinding wheels
Adjust angle of attack & application limits
Multigrain dresser

Process parameters that really work in production

  • Infeed (a_d): 0.01 / 0.02 / 0.03 to 0.05 mm per stroke
  • Feed rate: high feed rates possible due to wide effective area
  • Overlap: Grain row overlap as an adjusting lever for structure and self-sharpening
Obtain parameter setup for roughing / finishing

Thermal & cooling - this is where the service life is decided

  • Intensive flood cooling across the entire width of the fill
  • Risk with insufficient cooling: carbonization (critical from ~700 °C)
  • Dry running promotes matrix lubrication and loss of performance
  • Advantage: large matrix surface improves heat dissipation compared to single grain
Check cooling strategy & process reliability

Accuracy & result image - what is realistic (and what is not)

  • Profile accuracy: ± 10 µm / ± 20 µm (depending on grain size)
  • Repeat accuracy: > 98 % with uniform matrix wear
  • Radii: not designed for radius dressing
  • Effective widths: 8 / 10 / 12 mm
Define scope of action & target structure

Designs & recordings

Variants

  • Multi-grain dresser (hedgehog type / stocking in layers)
  • Sintered multi-grain dresser (diamond grain in metal matrix)
  • Manual dresser for rough correction work

Shanks / interfaces

  • MK0 / MK1
  • Cylindrical shank Ø 6 / 8 / 10 / 12 / 14 / 16 mm
  • taper 1:10 / hexagon / square holder
  • Socket type: sintered (bronze / steel)
Select mounting & design to match the machine
Every request is individual. We will be happy to advise you!
Please leave a message for a callback here.
Do you need a special shape or individual specification?
Request technical design.

Areas of application & suitable grinding wheels

  • Process: Flat grinding, external cylindrical grinding, centerless
  • Bonding: preferably ceramic
  • Grain material: aluminium oxide, normal corundum, sintered corundum, SiC
  • Industries: Mechanical engineering, roll grinding, bearing industry
Align grinding wheel & dressing target

Sources of error - typical no-go's in everyday life

  • Too little infeed with sintered bond → "Glazing", tool does not sharpen
  • Dressing without cooling → Grain breakout from the matrix
  • Use for profile radii → Incorrect tool principle
  • Incorrect transverse positioning → Uneven wear of the tile
Have the error pattern analyzed

Machine compatibility & integration

  • Producers: Studer, Jung, Blohm, Elb, Mägerle, Schaudt, Landis, Fortuna
  • Interfaces: Standard tool holders, turret holders
Check machine integration

Diamond specification - levers for stock removal and structure

  • Diamond types: Natural diamond grit, synthetic grit, diamond needles
  • Qualities: Extra / Standard / Industry
  • Concentration: carats per cm³ bond / setting density
  • Grain sizes: M3 (very coarse) / M50 (medium) / M100 (fine)
Grain / concentration proposal received

Life cycle, service & TCO - facts count for each volume accessed

  • Very long service life due to the self-sharpening effect of the matrix
  • Disposable tool (no regrinding required)
  • Exchange system + advice on matrix hardness optimization
  • Low process costs per dressed mm³ grinding wheel
Estimate TCO & replacement intervals

Why multigrain dressers from DIT?

Diamond expertise since 1982 - with a focus on process reality

DIT is owner-managed and has specialized in industrial diamonds since 1982. This experience is particularly relevant for multi-grain tools, because it is not only the grain size that counts, but also the matrix design, the erosion characteristics and the thermal robustness in series production.
Speak directly to application technology

In-house production in Saxony - short distances for special designs

  • Development and production in Saxony
  • Large stock of variants (over 1,000 items in the database)
  • Fast response times for adjustments to effective width, mounting or trimming
Request special version

Technological advantage through optimized matrix erosion

The USP of DIT lies in a matrix design that supports constant grip instead of "lubricating" the pulley. This reduces process drift, especially with long running times and high feed rates.
Adjust matrix hardness & grain pattern

USPs (DIT focus)

  • Optimized matrix erosion for constant cutting ability
  • High mechanical and thermal load capacity compared to single grain
  • No investment costs for dressing roller drive units
  • Wide effective surfaces for fast, robust dressing cycles
Have a multigrain dresser configured

Request

Mandatory fields
Technical specifications
Optional
Photo of the disk surface (file upload)
Thank you for your trust. We will get back to you as soon as possible!

Types and variants of our multigrain dressers

Do you need a special shape or individual specification?
Request technical design.

Sintered multi-grain dresser (metal matrix, dominant variant for series production)

Functional principle: Diamond grains are bonded in a sintered metal matrix; several grains overlap and distribute the load. This enables higher infeeds and feed rates, while the grinding wheel remains open-pored and "grippy".
Differentiation: Higher load capacity and longer service life compared to single grains for straight profiles; lower profile precision than profile/diaform tools; non-rotating; not for CBN/diamond wheels.
Typical use: Roughing/finishing of conventional grinding wheels in flat, external cylindrical and centerless grinding.

DIT Diamanttechnik GmbH & Co. KG designs the matrix hardness and setting density in such a way that erosion is controlled and the wheel structure remains constantly cuttable over the tool life.

  • Multi-grain dresser - when large-area planing/opening of wide slices dominates
  • Single-grain dresser - when defined radii and higher profile accuracy are required

Technical parameters:
Design sizeTypical area / note
Delivery a_d0.01 / 0.02 / 0.03 to 0.05 mm per stroke
Feed rate f_dhigh possible due to wide effective area
Profile accuracy± 10 µm / ± 20 µm (depending on grain size)
Repeatabilitygreater than 98 % (uniform matrix wear)
Effective width8 / 10 / 12 mm
Disk materialCorundum / SiC / sintered corundum
BindingPreferably ceramic
CoolingIntensive flood cooling across the entire width of the fill
Thermal limitDry running critical; carbonization from ~700 °C

Multi-grain dresser (hedgehog type, layered filling - "classic" design)

Functional principle: Multi-point coating in layers; the contact points act simultaneously and create a load-bearing, open-pored disk structure with robust removal.
Delimitation: Process robust, but geometrically not intended for radii/profile contours; more structure-oriented than contour-oriented.
Typical use: Conventional dressing with high process stability when the wheel "grips" again quickly.

DIT adjusts the layer structure and fill distribution to the infeed and feed window in order to avoid "smearing" of the matrix and promote self-sharpening.

  • Dressing plates - when web dressing with a constant effective width is required
  • Dressing tools - system overview of tool logic

Technical parameters
Design sizeTypical area / note
Delivery a_d0.01 - 0.05 mm per stroke
Feed ratehigh, depending on disk hardness and cooling
GoalOpen the pane structure and keep it stable
Radiinot suitable
Coolingflood-cooled, wide surface

Manual multi-grain dresser (manual, rough correction and maintenance)

Functional principle: Hand-guided multi-point contact for rapid correction of wheel surfaces and short-term restoration of cutting ability.
Delimitation: No reproducible CNC/copy geometry; for maintenance and workshop operation, not for precise profile transfer.
Typical use: Rough correction, quick resharpening when downtimes must be minimized.

DIT supplies hand-guided variants to suit the type of wheel and desired aggressiveness (grit size/trim) so that the wheel is opened rather than "polished".

  • Multi-grain dresser - when large surfaces are to be systematically planned/sharpened
  • Dressing tools - complete portfolio

Technical parameters
Design sizeTypical area / note
Delivery/pressingManual, process-dependent
GoalRough correction, open structure
Coolingrecommended when used close to the machine
RiskDry running → Matrix smearing / thermal

Multi-grain dresser with special holder (MK0/MK1, cylindrical Ø 6-16, taper 1:10, hexagonal/square)

Functional principle: Identical multi-point dressing principle, but with an interface matched to the machine/dressing arm for a stable installation position and quick changeover.
Differentiation: Variant focus is on integration, not on a modified operating principle.
Typical use: Machine parks with mixed mounting or turret/changing systems.

DIT manufactures the interface (shank/taper/holder) to match the actual machine in order to reduce cross-positioning and uneven wear.

  • Single-point dresser - when contour precision is required instead of structural work
  • Dressing plates - when defined effective width and µm repeatability are paramount

Technical parameters
Design sizeTypical area / note
RecordingsMK0/MK1; Ø 6 - 16 mm; taper 1:10; hexagonal / square
Effective width8 / 10 / 12 mm
Cross positioningdecisive for even wear
Coolingflat across the width of the stocking

Multi-grain dresser according to grain class & stocking density (M3 / M50 / M100)

Functional principle: Grit class and concentration determine aggressiveness, degree of opening of the bond and achievable surface/structure quality of the disc.
Delimitation: Finer grit classes increase structural homogeneity, but reduce the "brutality" when opening; coarse grit classes maximize opening and removal rate.
Typical use: Process coordination between roughing and finishing windows.

DIT dimensions grain class and carat per cm³ matrix in such a way that self-sharpening is achieved instead of "vitrification".

  • Multi-grain dresser - if the infeeds need to be significantly higher
  • Dressing tools - selection guide

Technical parameters
Design sizeTypical area / note
Grain sizesM3 (very coarse) / M50 (medium) / M100 (fine)
ConcentrationCarats per cm³ bond / grains per layer
Profile accuracy± 10 - 20 µm (typically depending on grain size)
RiskToo little infeed → "Vitrification" (with sintered bond)
CoolingCritical for service life and matrix behavior
Vertical multi-grain dresser in the automotive supply industry

Vertical multi-grain dresser in the automotive supply industry

Vertical multi-grain dresser in general mechanical engineering

Vertical multi-grain dresser in general mechanical engineering

Vertical multi-grain dresser for the rolling bearing industry

Vertical multi-grain dresser for the rolling bearing industry

Vertical multigrain dresser for hydraulic component production

Vertical multigrain dresser for hydraulic component production

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