Selecting the right dust collector is one of the most important investments you can make for your woodworking shop. While the Harvey G-700 PRO and G-800 PRO share an identical motor, fan system, and core Gyro Air separation technology, their performance in real-world woodworking environments is not the same.
Both machines use a 3HP motor, deliver a maximum of 1235 CFM, and reach 19.25 inches of static pressure on paper. But the internal design differences create meaningful improvements in airflow, efficiency, filter life, and overall performance for the G-800 PRO. This guide breaks down the differences so you can choose the right model for your shop.
1. Filter Capacity: The Hidden Key to Real-World CFM
A dust collector’s filter is one of the largest airflow restrictions in the entire system. More filter surface area means less resistance and more stable suction at the tool.
Filter Surface Area
G-700 PRO: 68 sq ft (6.3 m²)
G-800 PRO: 86 sq ft (8 m²)
The G-800 PRO has 27% more filter surface area, which meaningfully reduces back pressure. This is why the G-800 PRO delivers stronger real-world suction despite having the same motor and fan.
Actual Airflow at the Tool (6-inch hose)
G-700 PRO: 1275 m³/h (≈ 750 CFM)
G-800 PRO: 1450 m³/h (≈ 850 CFM)
That’s a 14% increase in real airflow when connected to a 6-inch duct.
Why More Filter Area Matters
Less static pressure pushback
Higher sustained CFM on large tools
Less frequent filter cleaning
Better performance with fine-dust machines (drum sanders, jointers, planers)
The G-800 PRO maintains suction much better over time because the larger filter allows it to “breathe” more freely.
2. Vertical Dust Intake: The G-800 PRO’s Efficiency Advantage
One of the biggest differences between the two models is the dust intake design.
G-700 PRO: Side Intake (Fixed)
Reliable and efficient, but the horizontal entry introduces additional turbulence. Chips and dust must make a sharp turn before entering the separation chamber, which can slightly decrease separation efficiency.
G-800 PRO: Vertical Intake (Adjustable)
The G-800 PRO accepts dust straight down from above, especially beneficial when connected to overhead ducting. The advantages include:
Gravity-assisted chip separation
Smoother airflow with less turbulence
Fewer obstructions and internal bends
Better handling of large, heavy debris
Reduced clogging at the inlet
More stable pressure readings across long duct runs
Because airflow enters vertically and travels straighter, the G-800 PRO experiences less turbulence and maintains higher efficiency during sustained operation.
[Photo Above] Gyro Air G-800 PRO shown with both vertical and horizontal inlet configurations.
3. Flexible Ducting Options: Designed for Modern Shops
Inlet Position
G-700 PRO: Fixed side-mounted inlet
G-800 PRO: Adjustable inlet, movable from the side to the top
This flexibility is extremely valuable for shops with overhead ducting or compact layouts.
Advantages of the G-800 PRO’s Adjustable Inlet
Shorter vertical duct runs from ceiling drops
Fewer elbows and transitions
Lower static pressure loss
Cleaner, more efficient duct layouts
A top-mounted inlet can prevent unnecessary pipe length and reduce CFM loss caused by extra bends.
4. Physical Size and Build — Why Bigger Matters
The G800 PRO is physically larger and heavier than the G-700 PRO, and this is intentional. The additional space accommodates:
The larger filter
Increased dust collection capacity
A more robust airflow path
A stronger, more solid structure
Overall Dimensions
G-700 PRO:
47-1/4" × 27-1/2" × 45-1/2" (1200 × 700 × 1150 mm)G-800 PRO:
51" × 29-1/2" × 55-1/8" (1295 × 750 × 1400 mm)
The G800 PRO has 40% more overall volume, supporting smoother airflow and better internal separation.
Net Weight
G-700 PRO: 540 lbs (245 kg)
G-800 PRO: 650 lbs (295 kg)
The G800 PRO is 20% heavier, reflecting its larger frame and more robust components for demanding shop conditions.
5. Dust Collection Capacity
Both machines use a two-stage collection system: a main chip bin for heavier debris and a fine-dust collection chamber for ultra-light particulates. While the main bin sizes are similar, the G800 PRO offers a major upgrade in the fine-dust chamber.
Main Dust Bin Capacity
G-700 PRO: 33.8 gallons (128 L)
G-800 PRO: 29 gallons (110 L)
The G700 PRO’s main bin is slightly larger in raw volume, mainly due to its shorter overall height and wider body design. In real-world use, both bins offer generous chip capacity suitable for planers, jointers, and table saws producing heavy, bulky debris.
Fine-Dust Collection Box
G-700 PRO: 1.6 gallons (6 L)
G-800 PRO: 4 gallons (15 L)
This is a 150% increase in fine-dust capacity on the G800 PRO.
Why this matters
Fine dust is produced heavily by sanders, drum sanders, CNC machines, and long rip cuts on hardwood. It fills up the small dust chamber much faster than chips fill the main bin.
The G-800 PRO’s significantly larger fine-dust compartment allows:
Longer run time between cleanouts
Less downtime when working with fine-dust tools
More stable airflow, because the chamber is less likely to become overloaded
Better separation consistency during sanding and CNC operations
In short, while the main chip bins are comparable, the G-800 PRO delivers far superior fine-dust handling, which meaningfully improves performance in high-volume or fine-particle environments.
Gyro Air G-700 PRO Dust Bin Capacity:
Gyro Air G-800 PRO Dust Bin Capacity:
6. Packaging and Build Protection
G-700 PRO: Ships in a cardboard carton
G-800 PRO: Ships in a heavy-duty wooden crate
The G-800 PRO receives enhanced shipping protection due to its larger weight, size, and industrial-grade build.
Which One Should You Choose?
Choose the G-700 PRO if:
Your shop is smaller with short ducting runs
You use one machine at a time
You want Gyro Air performance at a more affordable price
Choose the G-800 PRO if:
You want the highest real-world CFM available
You run large or fine-dust machines like drum sanders
You have long duct runs or overhead ducting
You want more consistent suction with less maintenance
You prefer the efficiency of a vertical airflow path
You want the largest filter, largest dust box, and most flexible installation options
In Summary
Even though the G-700 PRO and G-800 PRO share the same core mechanical components, the G-800 PRO is engineered for higher performance through:
A 27% larger filter surface, which increases real airflow
A vertical, adjustable intake that improves separation and reduces turbulence
A more spacious and optimized internal airflow path
A larger dust collection box for longer maintenance intervals
A heavier, more robust structure
Top-mountable inlet options for modern ducting layouts
For many woodworkers, the G-700 PRO is already a major upgrade from traditional dust collectors. But for shops that want maximum efficiency, highest CFM at the tool, and the longest filter life, the G-800 PRO clearly stands out as the superior long-term investment.
For more info, please check out the product details and manuals here!
- Gyro Air G-700 PRO
- Product Details:
- Manual: [Coming Soon]
- Gyro Air G-800 PRO
Was this article helpful?
That’s Great!
Thank you for your feedback
Sorry! We couldn't be helpful
Thank you for your feedback
Feedback sent
We appreciate your effort and will try to fix the article