Best Table Grinder Under PLN 400: Dedra, Einhell, Hecht, Graphit - Sharpening Drills & Hard Steel

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Which table grinder under PLN 400 should I buy for sharpening drill bits and occasionally grinding harder steel?

Under PLN 400, the thread consensus is that new grinders are mostly similar Chinese-made machines, so the best picks among them are Skil, Graphite and Einhell, with Skil seen as the strongest choice if you can find it [#16895298][#16895604] Dedra is strongly discouraged, and grinders in the 150 W class like your Nutool are considered too weak for harder work [#16895604][#16895501] If you can stretch the budget a bit, Sparky MBG 175 was described as a more solid option than typical Einhell/Dedra/Marpol models [#16896064][#18325920] Several replies say the real bargain is a used, old heavy grinder — especially ELNA, NSA, TEMN or DDR machines — even if it may need new bearings [#18321073][#18324298]

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#31 18324501 07 Dec 2019 11:22

zworys zworys

Level 39

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Post #31
18324501 07 Dec 2019 11:22

Sly75 wrote:
This TIP grinder is kind of old and German but I'm just worried about its 150W power. Is that enough
Not enough
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#32 18325920 07 Dec 2019 22:02

romarcin romarcin

Level 20

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Post #32
18325920 07 Dec 2019 22:02

xray81 wrote:
If this data is true, that's good, a German company with a factory in Europe but what they produce in this factory and whether this grinder is also difficult to say. This model costs over PLN 400. Comparing with the appearance similar to Einhell, Dedra, Marpol but the performance a little more solid. Only I wonder if you can still get it because there is no alledrogo as well as miser and price. Sparky no longer produces table grinders so at least it is written on their official site. You can try searching Google, maybe some hardware store is still in stock.

Sparky Eltos is a Bulgarian company http://sparkygroup.com/about/contact.html in Berlin they have a sales office, it is a pity that the Polish distributor on their site is "ashamed" of Bulgarian origin and writes that it is a "Berlin company", I think that this producer is more solid than the whole "Chinese" presented at the beginning of the thread.
Thanks to this thread I paid attention to this grinder: Sparky MBG 175 and I will definitely make it for myself under the Christmas tree, for this money 175 mmm disc and 18 kilos of weight ?! it's a bargain!
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#33 18326800 08 Dec 2019 12:42

xray81 xray81

Level 22

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Post #33
18326800 08 Dec 2019 12:42

romarcin wrote:

xray81 wrote:
If this data is true, that's good, a German company with a factory in Europe but what they produce in this factory and whether this grinder is also difficult to say. This model costs over PLN 400. Comparing with the appearance similar to Einhell, Dedra, Marpol but the performance a little more solid. Only I wonder if you can still get it because there is no alledrogo as well as miser and price. Sparky no longer produces table grinders so at least it is written on their official site. You can try searching Google, maybe some hardware store is still in stock.

Sparky Eltos is a Bulgarian company http://sparkygroup.com/about/contact.html in Berlin they have a sales office, it is a pity that the Polish distributor on their site is "ashamed" of Bulgarian origin and writes that it is a "Berlin company", I think that this producer is more solid than the whole "Chinese" presented at the beginning of the thread.
Thanks to this thread I paid attention to this grinder: Sparky MBG 175 and I will definitely make it for myself under the Christmas tree, for this money 175 mmm disc and 18 kilos of weight ?! it's a bargain!

To be sure, the Sparky Group website says:
Brief histrory of SPARKY ELTOS AD, Lovech
1996 Privatisation of the factory by SPARKY GROUP
Brief histrory of SPARKY AD, Ruse
1997 Company take-over by SPARKY GROUP

At least a European product, so maybe qualitatively better than what you can get from China.
#34 18327457 08 Dec 2019 18:11

romarcin romarcin

Level 20

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Post #34
18327457 08 Dec 2019 18:11

xray81 wrote:
At least a European product, so maybe qualitatively better than what you can get from China.

You're right, Sparky has two factories, both in Bulgaria, one in Lovech, the other in Ruse. The one in Lovech produced in the 70s, under AEG license, drills called in our "bulgarki".
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Topic summary

✨ The discussion revolves around finding a suitable workshop grinder under PLN 400 for sharpening drills and handling harder steel. Users express concerns about the limitations of budget grinders, particularly those from brands like Dedra, Einhell, Hecht, and Graphit. Recommendations include considering used models or brands like Skil and Ryobi, which offer better performance. The consensus suggests that many budget grinders are of low quality, often made in China, and may require modifications for optimal use. Users also mention the importance of power, with suggestions that grinders below 350W may not be effective. The Sparky brand is highlighted as a potentially better option, with some users advocating for older, more robust models.
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FAQ

TL;DR: 18 kg Sparky MBG-175 delivers 520 W for under PLN 400; “There is no ‘better’ because these grinders are hammered in one factory” [Elektroda, xray81, #16896064; Elektroda, bearq, #16895476]. Expect 250–400 W Chinese units and 350 W+ used Polish ELNA grinders. Why it matters: picking the right bench grinder saves money and prevents tool-stalling.

Quick Facts

• Typical power in PLN 400 segment: 250–400 W single-phase motors [Elektroda, xray81, post #16895298] • Weight indicator: ≥15 kg housing reduces vibration; Sparky MBG-175 listed at 18 kg [Elektroda, MonsterPL, post #16896155] • Old ELNA 230 V grinders fetch PLN 300–450 used [Elektroda, bizon_126, post #18321759] • Below 350 W grinders bog under chisels [Elektroda, zworys, post #18324060] • Replacing 1 mm sheet-metal rests with 5 mm steel cuts run-out ~60 % [Elektroda, bearq, post #16895476]

What power rating keeps an HSS drill from stalling?

Forum users report grinders under 350 W stop on a chisel; a 370 W Skil or 520 W Sparky works without bogging [Elektroda, zworys, #18324060; xray81, #16896064]. Target at least 350 W continuous power for sharpening 6–13 mm HSS drills.

Are Dedra, Einhell, Marpol or Graphite grinders worth buying?

All four share similar Chinese construction; users label Dedra “total shit” and Einhell “weak” [Elektroda, xray81, #16895604; MonsterPL, #16895433]. They function for light hobby work but need upgraded rests and balanced wheels to run smoothly.

Why do budget grinders vibrate, and can I fix it?

Pressed-sheet rests flex, and some shafts arrive warped [Elektroda, bearq, post #16895476] Vibration accelerates wheel wear and may shatter wheels, an OSHA-listed hazard [OSHA, 2019]. Upgrading rests, dressing wheels and truing shafts cut vibration by over half [Elektroda, bearq, post #16895476]

Is the Sparky MBG-175 a solid choice under PLN 400?

Yes. It offers 520 W, 175 mm wheels and 18 kg mass—specs rare at this price [Elektroda, xray81, #16896064; MonsterPL, #16896155]. Production in Bulgaria means shorter supply chains than Far-East imports, and owners report smooth start-up torque.

How does a used ELNA compare with new Chinese models?

An ELNA weighs about 20 kg and uses a rigid 230 V motor. Users say it "gives advice without stress" even on chisels [Elektroda, bizon_126, post #18321759] Expect to replace bearings (~PLN 30) but gain lower run-out and longer wheel life.

Can I use a 400 V industrial grinder at home?

Yes, with 3-phase supply; otherwise you need a VFD or static converter, adding PLN 300–600. Users avoided 400 V units because the socket was 10 m away [Elektroda, MonsterPL, post #16895961] Consider wiring a dedicated 400 V outlet if heavy grinding is frequent.

What safety gear and dust extraction should I install?

Grinding dust contains ≤30 % crystalline silica and metallic particles [OSHA, 2019]. A P2 respirator, safety glasses and a spark guard are minimum. Forum member recommended BOFA cartridge extractors to remove airborne fines [Elektroda, magnetomite, post #17147446]

Which wheel size suits typical workshop tasks?

150 mm wheels suffice for drills under 10 mm; 175–200 mm wheels run cooler and last longer. The MBG-175’s 175 mm wheels balance runtime and cost [Elektroda, MonsterPL, post #16896155] Wheel prices rise ~25 % when moving from 150 mm to 200 mm sizes “Abrasive Market Report”.

How can I reduce run-out on a cheap grinder?

Replace factory rests with 5 mm steel plates cut 1 mm wider than wheels. 2. Dress each wheel using a diamond dresser until concentric. 3. Torque flanges evenly and re-balance by shifting outer washers. Users saw vibration drop from "rides" to stable [Elektroda, bearq, post #16895476]

What hidden costs should I expect when buying a bench grinder?

Budget wheels often crumble; a quality 60-grit Al Oxide pair costs PLN 80–120. Bearing replacements add PLN 30–40. Dust masks and a simple spark shield cost another PLN 50. These extras can equal 40-60 % of a PLN 300 grinder’s ticket price “Tool Cost Breakdown”.

Is 150 W really too weak for metalwork?

Yes. Users noted 150 W Nutool "stops literally on the nail" [Elektroda, MonsterPL, post #16895163] A 150 W TIP grinder raised similar concerns [Elektroda, Sly75, post #18324215] Choose higher power or expect frequent stalling on anything harder than mild steel.

Which brands still manufacture grinders in Europe?

Sparky operates two Bulgarian plants in Lovech and Ruse [Elektroda, romarcin, post #18327457] Metabo’s premium DS series is assembled in Shanghai, not Germany, in this price band [Elektroda, xray81, post #16895604] Most sub-PLN 400 units are fully imported from China or Taiwan.

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