Important Disclaimer
This article references a model that is no longer in production. Please note that the availability of replacement parts or discussed accessories is not guaranteed.
Can I cut metal or other non-wood materials with my planer?
No. While the planer may physically cut other materials, it is only designed for natural wood. Cutting metal, composites, or plastics can:
- Create a serious safety hazard for the operator or bystanders
- Damage the machine or reduce its lifespan
- Void the warranty
Use the machine only as intended to maintain safety and performance.
Can I use my planer without a dust collector?
Yes, but it’s not recommended. Without dust collection:
- Chips and dust can build up quickly, requiring extra cleanup
- Fine dust may pose respiratory health risks
- The machine's internal components may wear faster due to accumulated debris
For best results, use a proper dust collection system that meets or exceeds the minimum CFM rating specified for your planer.
How do I know which size motor I’ll need for my planer?
It depends on:
- Typical stock width
- Wood species
- Cutting frequency and workload
Technically, any planer can cut hardwood at its full width if the feed rate is slow enough—but overly slow feed rates can cause rippling and chipping, while overly fast rates can cause the motor to overheat and fail.
For reference:
- A 1.5 HP motor can handle 6" wide hardwood repeatedly with an aggressive feed rate
- A 3 HP motor can handle about 12" wide hardwood under the same conditions
Choose a motor that can handle your typical use case without bogging down, ensuring smooth operation and long motor life.
This machine is rated for 220V or 440V. Can I plug it into either voltage?
No. The machine is factory-wired for 220V. To operate at 440V, it must be:
- Rewired
- Outfitted with different electrical components
If you need 440V operation:
- Grizzly must perform the conversion at the time of purchase
- A $250 conversion fee applies
- Additional shipping time is required
Grizzly also offers 440V conversion kits for second-hand machines.
⚠️ Important: The 440V conversion must be done by a qualified electrician to preserve the warranty and prevent risk of electrocution, burns, or death.
If the machine is converted to 440V, can it run on 480V?
Yes. The motor can safely operate within ±10% of its rated voltage. For 440V, this means it can handle 396V to 484V.
⚠️ Operating at the low end of this range can increase motor and component temperatures, which may reduce long-term reliability.
What is the difference between G9740 and G9740Z?
- The G9740Z comes with a spiral cutterhead
- The G9740 uses four 1/8" thick HSS straight knives
Other than the cutterhead and visual differences, the machines are identical.