Zinken Compact 21 : Repairs

I bought this unit in Brisbane, Australia. This records details in case they are useful to others.

Bearings

Bearings were mostly stuffed after 30 years. They are metric and available from standard suppliers. Steel sides (ZZ).

  • Spindle Molder Belt Idler: 6000 (x2)
  • Spindle Molder:
    • 6205
    • 6005 (47odx25idx12thk)
  • Saw: 6001 (x2)
  • Planer: 6304 “ZR” (x2)
  • Drive Shaft (starting closest to motor)
    • 6205ZZ : 52od x 25id x 15thk (1): 6205
    • 6005ZZ: 47od x 25id x 12thk (x2): 6005
  • Square Slider Table Rollers: 626 (x6)

Sources: Applied Industrial Geebung, CBC Eagle Farm

Pitfalls

  • Turn the machine on its table to access.
  • The drive shaft retaining bolt (at the end of the shaft) is reverse threaded (M8, 22 long thread).
  • A bearing puller is required for drive shaft with a reach of >110mm

Belts

Must get custom made. Used type F1, GT 10P, 1.6mm from Forbo

  • Saw: 815×25
  • Planer: 930×25
  • Molder: 1050×25
  • Feed: 750×15

Sources: Forbo Virginia

10 thoughts on “Zinken Compact 21 : Repairs

  1. Hi Brett I have acquired a ZC 21 and don’t know how to use it or if I would use it. I was just wondering if you know what it would be worth? It has all the attachments and instructions with it. Regards Damien

    1. I paid $1000 for a machine with all key parts. Motor ok. Belt old but ok. It needed new bearings and a fair bit of work.

  2. Hi Brett,we have a Zinken 21 compact type 79 machine that requires three new prismatic locking bars,if you can help we would like a price including freight to New Zealand.
    regards Jim

    1. I have a Zinken 21. I have been trying to find replacement locking bars for the planer head. The old zinc ones have expanded and cracked.
      I have been speaking to an enginer in Wellington who can make 3 new ones for around NZ$600. Not sure if anyone has good originals for sale ?

      1. Hi Jeff. I haven’t found any parts. The Italian company exists but have no parts. Good luck!

  3. Hi Brett, Thanks for this page
    My Zincen 21 a gift from a friend was pure bliss until one day the motor suddenly lost power .It still just starts if I manually spin the cooling fan a bit but it hasn’t has got any guts left . What kind of motor (Part no 5151TRIF) do you reckon it is ?. I can’t see any evidence of brushes ? I have this amazing 12 page coloured promotion guide in English so I do know it has a very clever magnetic safety and voltage protection switch but that’s all on the motor front .
    Thanks
    Steve in Bellingen.

  4. Hi
    I have various used cabinet making machines including a have a Zinken 21 Type 79. If anyone is interested in buying.

  5. Hi Brett, I too have a ZC 21 with a good set of accessories inhertited from father-in-law that I use in many ways. I’m currently puzzling on using 1/2″ end mills in the spindle moulder. The accessory I have is a split collet for 9.5mm end mills, mentioned on p23, and shown in fig 33. I’ve been trying to work out what the taper is, to see if other collets are available. Anybody else in NZ or OZ tried matching the taper measurements to collets that are available today, and maybe successfully finding one that fits?
    I can source router bits with 9.5mm (3/8″) dia shanks, but there is greater choice at 1/2″ shanks .. including ironically ones that I have without having a collet to put them in.

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