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დანების სალესი დანადგარი

A profile knife grinding machine lets a moulding shop regrind its own moulder and planer knives instead of sending them to an outside service, keeping the profile consistent and the machine running. This category holds 1 machine, the NETMAK NPM 200: moulding knives up to 200 mm long and cutter heads up to 300 mm in diameter, ground on a 250 mm wheel with a 40 mm bore turning at 2400-2800 rpm from a 2.2 kW, 380 V / 50 Hz motor. The NPM 200 is supplied by quotation.

განახლდა

ავტომატური მიმწოდებელიგამწოვი (ასპირაცია)დანების სალესი დანადგარისახეხი მაგიდაციკლონური გამწოვი

ნაპოვნია 1 დანადგარი

ნაპოვნი დანადგარები

Why a workshop grinds its own profile knives

A profile knife grinding machine buys turnaround and consistency, not cheap tooling. When moulding knives are reground in-house, a dulled profile goes back into the head the same working day instead of travelling to an outside sharpening service and back, and the profile stays the same because the same machine, the same wheel and the same operator touch it every time. For a shop running architraves, skirting, window sections or door beading, that is the difference between finishing a batch and stopping it. The NETMAK NPM 200 is the profile knife grinder in this range – 1 machine, with no sibling model at a different capacity.

Capacity: measure your longest knife first

Two numbers decide whether the NPM 200 fits your work. Profile length is the first and the more important: the NPM 200 regrinds moulding knives up to 200 mm long, so measure the longest knife in your moulder or planer before anything else. Cutter head diameter is the second: heads up to 300 mm in diameter are within the machine’s capacity. If your knives are longer than 200 mm or your heads exceed 300 mm, the NPM 200 is not the machine for that work, and the requirement should be stated in the enquiry so an alternative can be discussed rather than assumed.

Power supply is three-phase

The NETMAK NPM 200 is a three-phase machine: the grinder is specified at 2.2 kW on 380 V / 50 Hz, and it will not run from a single-phase workshop socket. A shop that currently works on 230 V single-phase needs the supply arranged before the grinder is delivered, and the electrical installation is worth pricing at the same time as the machine so that the two do not arrive out of sequence.

Wheel speed and grinding wheels

Grinding wheels are the running cost of the NPM 200. The machine turns a 250 mm wheel with a 40 mm bore at 2400-2800 rpm, so replacement wheels must match that diameter and bore, and wheel grade is chosen for the steel of the knives being ground. Budget a set of wheels with the machine rather than after it, and treat wheels as an ongoing consumable in the same way as saw blades or router cutters.

Space, dust and where to put the grinder

Site the grinder away from wood dust. Grinding throws hot metal particles and abrasive grit, neither of which belongs in a wood chip extraction system or in a corner where fine dust has settled, so a separate bench area with its own lighting is the sensible arrangement. Floor space needed by the NPM 200 is modest next to a moulder, but the operator needs clear room at the front to index the knife, check the profile and lay a matched pair of knives out side by side.

What the quotation covers beyond the machine

The quoted figure for a NETMAK NPM 200 moves with configuration rather than with a list price. The items that change it are the grinding wheel set specified with the machine, delivery to your site, installation and the three-phase connection, and operator training on setting and checking a profile. Because the NPM 200 is the only profile knife grinder in the range, comparison is not between models here but between grinding in-house and continuing to send knives out – and the honest way to make that comparison is to price your current annual sharpening spend and downtime against a quotation for the machine, wheels and installation together.

როგორ ავირჩიოთ

Knife length up to 200 mm
Measure the longest moulding knife you run. Knives within 200 mm are inside the NPM 200's capacity; anything longer falls outside it and should be raised on the enquiry.
Cutter head diameter up to 300 mm
Heads up to 300 mm in diameter are within capacity on the NPM 200, which covers typical spindle moulder and planer heads in a joinery shop.
Grinding wheel 250 mm x 40 mm bore
Replacement wheels must match 250 mm diameter and a 40 mm bore; wheel grade is chosen for the knife steel, so order a starter set with the machine.
Wheel speed 2400-2800 rpm
Fixed working speed band on the NPM 200 - control of the result comes from wheel grade, feed pressure and operator technique rather than from spindle speed.
2.2 kW on 380 V / 50 Hz
Three-phase only. A single-phase workshop must arrange the supply before delivery, and the electrical work should be priced with the machine.
Volume of knives ground per month
The more knife sets and the more profiles a shop runs, the sooner in-house grinding pays back against outside sharpening fees and the downtime of sending knives away.
Siting away from wood dust
Plan a bench position with its own light, clear front access for indexing knives, and no connection to the wood chip extraction system.

ხშირად დასმული კითხვები

Which profile knife grinding machine should I choose?
There is one profile knife grinding machine in this range, the NETMAK NPM 200, so the choice is not between models but between capacities and needs. The NPM 200 handles moulding knives up to 200 mm long and cutter heads up to 300 mm in diameter. If every knife in your shop falls inside those two figures, the NPM 200 covers your work; if you run longer knives or larger heads, say so in the enquiry rather than assuming the machine will stretch to them.
What power supply does the NETMAK NPM 200 need?
The NETMAK NPM 200 needs a three-phase supply: the grinder is rated 2.2 kW at 380 V / 50 Hz and cannot be run from an ordinary single-phase socket. Workshops on 230 V single-phase should treat the electrical installation as part of the project and have it ready before the machine arrives. Confirm the supply available at your site when you request the quotation so the connection requirement is agreed in advance.
How much space does a profile knife grinder need, and what about dust?
A profile knife grinder takes far less floor space than the moulder it serves, but the NPM 200 does need clear access at the front so the operator can index the knife and read the profile, plus bench room to lay out a matched pair of knives. On dust, keep the grinder away from wood chip extraction: grinding produces hot metal particles and abrasive grit that should not enter a wood dust system, so give the machine its own area with good local lighting.
What does the NETMAK NPM 200 cost?
The NETMAK NPM 200 is sold by quotation, and the figure is driven by the configuration specified, the grinding wheel set ordered with the machine, delivery to your site, the three-phase electrical connection and installation, and operator training. Send the profiles and knife sizes you run, plus the supply available at the workshop, and a quotation covering machine, wheels, delivery and installation can be prepared as one package.
What do I need to budget beyond the grinding machine itself?
Beyond the NPM 200 itself, budget the consumables and the setup. Grinding wheels are the running cost - 250 mm diameter with a 40 mm bore, in a grade suited to the steel of your knives - and they are replaced as work goes on. Add the electrical connection, a bench area with lighting, and time for an operator to learn profile setting. Knife blanks and the cutter heads themselves remain separate purchases.
Is grinding knives in-house worth it compared with an outside sharpening service?
Grinding in-house is worth it when downtime costs more than sharpening fees. A shop that stops a moulding run while knives travel to a service and back loses production time on every profile change; with a NETMAK NPM 200 on site, the same knives go back into the head the same day and the profile stays consistent because the same machine grinds it every time. Compare your annual sharpening spend plus lost hours against one quotation covering the machine, wheels and installation.