Specs
Doctor Blade specs
Setup notes and briefing numbers for Doctor Blade.
Doctor blade dimensions that matter
This Doctor Blade specs page gives the key technical information needed before supply is approved. Check the blade details here against your chamber system, ink type and normal press conditions.
Doctor blade specification starts with blade material, thickness and tip profile. Carbon steel, stainless steel and coated grades behave differently with water-based inks, solvent systems and abrasive whites commonly used on South African packaging work. Chamber width, anilox line count and normal press speed should be checked together before a blade is approved.
Check the clamp area and holder condition before matching any new blade. Burrs on the chamber, uneven seating and worn end seals can distort a correct specification and cause scoring, leakage or premature edge wear. A simple photo of the holder and the old blade edge helps confirm whether the issue is the blade or the chamber setup.
What the spec sheet must cover
Identify the exact blade width, gauge, bevel style and material for the chamber in use. Record the working angle, typical ink family and any restrictions linked to ceramic anilox rolls or reverse angle setups. Clear naming prevents confusion between metering blades, containment blades and swapped chamber positions.
Before ordering stock, match Doctor Blade specs to the relevant chamber model, press unit and ink application. Include the normal operating speed, whether the job runs water-based or solvent, and any recurring wear point seen on press. Use the contact form with blade size and holder details if the setup needs checking.
- Blade gauge matched to chamber load
- Bevel angle checked against anilox use
- Chamber photos included with specification checks
Press conditions seen in South Africa
Dry inland sites can carry more paper dust and corrugated fibre into the chamber area, which affects blade life and seal wear. Coastal humidity around Durban and Cape Town can change wash-up habits and corrosion risk on unprotected steel blades. Older presses still running in Gauteng often need holder measurements verified because nominal blade sizes do not always match what is fitted.
Power interruptions can leave ink drying on the chamber side if wash-up is delayed, so blade edge condition should be noted after any unplanned stop. Long production stretches on packaging work also make heat, foaming and abrasive pigment build-up more visible at the blade. These conditions should be reflected in the final specification and maintenance notes.
Operated by Astros Marketing (Pty) Ltd from 2 Makro Place, Sunnyrock 1401.
Details to send with blade queries
Send the current blade size, material, chamber make, anilox specification and ink type. Mention whether the problem is scoring, leakage, line build-up or short blade life.
File the blade specification with the day’s job card while settings are still fresh. That record helps when QA asks for the exact thickness, tip finish and chamber position used on a packaging run.
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