Grizzly   |  Model: G0454Z
20" Planer w/ Spiral Cutterhead
Price: $2,695.00
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Grizzly G0454Z - 20" Planer w/ Spiral Cutterhead

Model: G0454Z
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Tariff Fee:  Tariff Fee
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Monthly payments as low as . Learn More
Put this 20" Planer in your shop without breaking the bank. Solid cast iron and steel construction and large planing capacity make this planer a true heavyweight. However, with a foot-operated caster system, you won’t need to manhandle this planer around your shop. You’ll also appreciate the 55-1/2" long precision-ground table, 5 HP motor and the two-speed gear box for maximum versatility. The G0454Z has a spiral cutterhead with 4-sided German-made carbide inserts for ultra smooth surfaces. CSA certified meeting CSA C22.2 #71.2-08 and UL 987-7 standards!


  • Motor: 5 HP, 240V, single-phase, 19A
  • Maximum cutting width: 20"
  • Maximum cutting height: 8"
  • Minimum stock thickness: 3/16"
  • Minimum stock length: 8"
  • Maximum cutting depth: 1/8"
  • Feed rate: 16 FPM and 20 FPM
  • Cutterhead diameter: 3-1/8"
  • Number of Indexable Inserts: 98
  • Cutterhead speed: 4800 RPM
  • Feed rolls: rubber-coated
  • Table size: 20" x 25-3/4" (20" x 55-1/2" with extension)
  • Overall dimensions: 55-5/8" L x 39" W x 45-7/8" H
  • Approximate shipping weight: 932 lbs.


  • Built-in mobile base
  • Precision-ground cast-iron table and wings
  • Board return rollers
  • Adjustable bed rollers
  • Magnetic switch with thermal overload protection
  • Four-column support with table locks
  • Two-speed automatic board feed
  • Includes 5" dust port
  • Heavy-duty cast-iron construction
Show More... California Proposition 65 Warning

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31 Customer Reviews (4.8 out of 5 stars): Sign in to write a review

undecided at present time 11/5/2018

So far purchased in March 1918 for one price received in September 1918 with a tariff attached. Arrived with shipping create heavily damaged. Sent pics to grizzly. Upon assembly the machine was not level. Contacted Tech support was advised on techniques for leveling and during process found front leveler was broken. Currently working with grizzly tech to resolve problem. Staff to this point is courteous and wanting to resolve issue. not happy with timing to resolve current issue. Had to call grizzly to find out on resolving current issue they had to look up issue which took some time. Waiting for management to contact within next 48 hours. Machine runs well. Very quiet . Hopefully can resolve issue and would be extremely happy with this machine. Final disposition on product pending\. Issue was resolved Grizzly sent a bear claw mobile base. The lady who worked on this issue was extremely helpful in getting this resolved. As for performance still undecided

Solid Planner once issue was resolved 7/21/2018

I waited months for this product and it finally arrived in late May. Unfortunately it had a problem.

I went through all of the setup, cleaned all the shipping grease, and fired it up. When I run a board through the left side works great, but on the right side it growls as the board is fed through. Cutting is good on both sides, just a growling/squeaking noise on the right side. I discussed with Grizzly support and they promptly sent out some parts (bearings, bushing blocks, gasket, etc.) to change out to address the noise. I talked to a number of different tech support people and they all provided advice and suggestions. I did a lot of trouble shooting - lower or raising various components to see how it impacted the noise. I ended up tearing the machine apart and replacing one of the cutter head bearings. I was disappointed that it did not fix the problem and was ready to send it back for Grizzly to fix. Their tech support called me one more time and the individual I talked with this time had a better knowledge of the machine and recommended I adjust the pressure bar. That ended up being the problem. I had adjusted them to spec, but by adjusting the noisy side the problem was eliminated!

The machine is solid and cuts nicely. It is much quieter than my old 15 inch planner with straight knives and the cut is better. I would recommend the machine, but know that if there is an issue it may take some time to resolve as you will have to do the work unless you want to send it back. This is my second machine from Grizzly and the first, a 12 inch jointer has performed great with no issues.


other than the six month wait...I am very happy with it.


I am quite pleased with the way it works and the finish on the wood. although not all 5 hp motors are the same My older 1033 with a spiral cutter head handles 18 inch oak with ease. but it is rated with much high amperage but I am still pleased with this machine for the price difference.

David B

After having to wait 27 weeks to receive this planer and having to jury rig the dust collector as it is not a true 5" inside or out I think the planer is great. It is no louder than my dust collector and planes wood very smooth.

Love the spiral cutter head 6/1/2018

Great Quality! 5/31/2018

Great planer, but back ordered forever 4/12/2018

Ive had this planer a few weeks and have been very pleased with it. Seems to be very well constructed, as I expect from Grizzly products. I own several Grizzly machines and have been pleased with all of them. The only negative was the lead time. I ordered this planer last summer and never received it until March 2018


After waiting almost nine months for arrival, I am pleased with the it. The spiral cutting head is great! Have demonstrated it to other fellow woodworkers.

Tom H
It was a long time coming but very much worth the wait. I love it! 3/27/2018

I don't believe there is a better value on a 20" planer on the market!

Ken J
Awesome 20" Planer! 2/16/2018

Lou I
Love this tool ! 2/12/2018

I waited over 6 months for this item to come from backorder. Had a reasonable back-up planer, but wound up pushing out a few projects that
would benefit from the larger, more powerful tool. I'm glad it did. It cuts smooth, feeds smooth and produces minimal snipe.
This is my second major grizzly product, and both have performed excellent right out of the crate.

looks good so far 2/10/2018

I like the fact that it is much quieter than my old planer. It seems to do a good job on figured woods that tended to chip out on the old knife style cutters.

Steve J

This planer is everything I was hoping it would be. It was well-crated, and arrived in perfect condition. It was easy to set up, and worked perfectly right off. I have put a ton of walnut through it, some pine, and some ash so far, and it all has been excellent! This is the first spiral cutter head machine I have used, and I'm sold. It's fast, smooth, and quiet. I have nothing but praise for the machine itself.

As a side note, I knew it was on back order, but I didn't expect to have to wait almost 7 months for it to arrive after ordering it. I'm not so sure I'll do that again. I have seen a lot of comments bashing UPS Freight in other I know why - their customer service is worse than terrible!

Both tools work I am pleased. 2/10/2018

I just got finished setting up my planer and it works greasy. I am using the jointer and am very pleased.
Thanks for asking

Danny O

It took 5 months to receive my planer but it sure was worth the wait. I couldn't believe how well it was crated for shipment damage at all. I am so pleased with this planer it is well constructed. Love it!!!!!!

A strong beast of a machine 12/15/2017

Easy asssmbly Built in mobile base Lots of cast iron Drive oil case is hard to get to, but using a syringe makes putting oil in very easy Im happy Quiet beast of a machine

matt S

Overall I'm very happy with this planer. I agree with the review prepared to adjust everything. You will definitely need a rotacator. All the fine tuning however is more than worth it for the price. You'll need a pretty strong dust collector. My 1.5hp Jet still doesn't get all the shavings.

Beast of a Machine! 8/14/2017

Well built piece of machinery. Great deal! 3 month delay for delivery was annoying but glad to have it now. Switch was not functioning on delivery but easily fixed. Ran the first board through it and it is smooth with no tear out!

Dale N
This is a beast, easy set up and excellent finish. 6/13/2017

It was worth the wait. This is a beast, easy set up and excellent finish. I run 1800 board feet of latch in an afternoon.

Clayton W
This Planer is SWEET!! 6/6/2017

The smoothness of the cut and almost zero snipe is impressive.
Two cautions- 1) Be prepared to adjust everything, If you do not have a rotacator order one at the same time it will be needed.
2) The exhaust port is larger than 5". I heated one of my 5" to 4" reducers with a heat gun and used a container to flare it out to fit the port.
That being said love this planer.

Beautiful Machine 6/6/2017

No adjustments needed and the gearbox did not need any oil. Nice shipping container and manual. Easy to follow instructions and everything was there. No snipe on the hundred board feet it has seen thus far. The shippers almost tore the shipping container apart though. One of the three skid bottom rails was missing so the 900 pound machine rocked precariously when offloading. Just pitiful shipping service!!

Mark R
A great planer. I love how quiet it runs with the helical cutter head 6/4/2017

I'm a stairbuilder and this, but I along with the 12 inch jointer and and the 15-30 inch wide belt sander is all I needed to make my own posts, rail, and treads, skirt boards and more. Love them all!

Great machine love the spiral cutterhead 6/4/2017

Spiral head runs a lot quieter and does an excellent job than my old machine.


I've had this planer for a couple of months now and really like it. Does a good job. You will need a dust collector.


Very pleased with performance. Good value for the money. I would recommend to anyone interested in a planer of this size. Yes I would buy this again if had a chance for a do over.....your just Not going to find a better PLANER for for the price!

Ryan M
Great choice 4/10/2017

This was a great purchase couldn't be happier. Right away I ran a bunch of knotty white oak through it and there was no problems tore right through it.

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