3.Directional changes should be kept to a mini- mum. The more directional change fittings you use directly increases the overall resis- tance to airflow.

4.Gradual directional changes are more effi- cient than sudden directional changes (i.e. use the largest corner radius possible when changing hose or pipe direction).

5.Each branch line should have a blast gate immediately after the branch to control suc- tion from one machine to another.

6.The simpler the system, the more efficient and less costly it will be.

Step 4. Determine Required CFM of Each Machine

Since each machine produces a different amount of sawdust, the requirements for the minimum amount of CFM needed to move that sawdust is unique to the machine (for example, a planer pro- duces more sawdust than a table saw). Knowing this required CFM is important in gauging which size of duct to use.

Figure 49 will give you a close estimation of the airflow your machine requires. Machines that generate the most sawdust should be placed near the dust collector. If the machine has multiple dust ports, the total CFM required is the sum of all ports.

Machine

Approximate

Dust Port Size

Required CFM

 

 

2"

98

 

 

2.5"

150

 

 

3"

220

 

 

4"

395

 

 

5"

614

 

 

6"

884

 

 

7"

1203

 

 

8"

1570

 

 

9"

1990

 

 

10"

2456

 

 

Figure 49. Approximate required airflow for

machines, based on dust port size.

G0637/G0638 Cyclone Dust Collector

If your machine does not have a built in dust port, use Figure 50 to determine the size of dust port to install on your machine.

Machine

Average Dust Port Size

Table Saw

4"

Miter/Radial-Arm Saw

2"

Jointer (6" and smaller)

4"

Jointer (8"-12")

5"

Thickness Planer (13" and smaller)

4"

Thickness Planer (14"-20")

6"

Shaper

4"

Router (mounted to table)

2"

Bandsaw

4"

Lathe

4"

Disc Sander (12" and smaller)

2"

Disc Sander (13-18")

4"

Belt Sander (6" and smaller)

2"

Belt Sander (7"-9")

3"

Edge Sander (6" x 80" and smaller)

4"

Edge Sander (6" x 80" and larger)

5"

Drum Sander (24" and smaller)

2 x 4"

Drum Sander (24" and larger)

4 x 4"

Widebelt Sander (18" and smaller)

5"

Widebelt Sander (24"–37" single head) ..

2 x 6"

Widebelt Sander (24"_51" double head).5 x 4"

Figure 50. Dust port size and quantity per

average machine.

Write the required CFM for each machine on your sketch, as shown in Figure 51.

��� ��� ���

��

���

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Figure 51. CFM requirements labeled for each

machine.

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Grizzly G0638, G0637 owner manual Determine Required CFM of Each Machine, Machine Approximate
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G0638, G0637 specifications

The Grizzly G0637 and G0638 are two robust woodworking machines designed to cater to both amateur woodworkers and seasoned professionals. These models stand out for their precision, durability, and versatility, making them ideal for various woodworking applications.

One of the main features of the Grizzly G0637 is its powerful 3 HP motor, which provides ample power for cutting through different types of wood with ease. This capability makes it suitable for heavy-duty tasks, including jointing and planing thick lumber. On the other hand, the G0638 model boasts a twin-knife cutterhead for enhanced efficiency, providing smooth finishes and improved stock removal rates. This feature is particularly useful for woodworkers who require high-quality outputs in less time.

When it comes to technology, both models incorporate advanced engineering principles to ensure operational stability. The Grizzly G0637 features a precision-ground cast-iron table designed for flatness, contributing to accurate results. This table is also fitted with an integrated dust collection system, which helps maintain a clean workspace by minimizing sawdust accumulation during operations. The G0638 model enhances this design with a spiral cutterhead, featuring multiple carbide inserts that provide a cleaner cut and longer life than traditional blades.

Another notable characteristic of both models is their user-friendly design. The height adjustment knobs are conveniently placed for easy access, allowing users to quickly adjust the cutting height without disrupting workflow. Additionally, both machines are equipped with oversized handwheels that enable fine adjustments, ensuring that every cut meets precise specifications.

Safety is another important aspect of the Grizzly G0637 and G0638 models. Each machine includes features such as anti-kickback pawls and blade guards, which promote safe operation while handling various stock types. The solid construction of these machines also minimizes vibrations, further enhancing stability and safety during use.

In conclusion, the Grizzly G0637 and G0638 represent the pinnacle of woodworking machinery, combining power, precision, and user-friendly features. Their innovative technologies and solid construction make them a valuable addition to any workshop, allowing woodworkers to achieve exceptional results in their projects. Whether you're jointing edges or planing surfaces, these machines are designed to enhance performance and elevate craftsmanship.
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