ALPHA PWC-658/514 Pneumatic Cutter/Grinder
The ALPHA PWC-658/514 Pneumatic Cutter/Grinder is a powerhouse tool engineered for professional stone fabricators who demand versatility, precision, and durability. Featuring a quad-adapter center water-feed system, it delivers direct water flow to both the front and back sides of the blade, ensuring optimal dust suppression and extended blade life.
Its reversible safety guard allows for left or right blade positioning, adapting to different cutting needs, while the L-bracket and side handle setup make the pull-to-cut method effortless and controlled. Beyond cutting, this tool excels in flat grinding applications, offering a reliable, high-performance solution for a wide range of stone fabrication tasks. Built for heavy-duty use, the ALPHA PWC-658/514 is the ultimate all-in-one pneumatic cutting and grinding solution.
PWC-658/514 Pneumatic Cutter/Grinder Main Features
- High-Speed, High-Performance Pneumatic Angle Cutter/Grinder
- Reversible Safety Guard For Left Or Right Blade Position
- L-Bracket & Side Handle Setup For Pull-To-Cut Method
- Side Handle Attachment For Push-To-Cut Method
- Spring-Return Throttle Avoids Accidental Start
- Easy Access Oil Port for Daily Maintenance
- Quad Adapter Center Water-Feed System Provides Direct Water Flow to Front and Back Side Of The Blade
- Center Water Feed-System Is Perfect For Flat Grinding
- One Year Tool Warranty*
ALPHA PWC-658/514 Pneumatic Cutter/Grinder Videos
PWC-658/PWC-514 Pneumatic Cutter/Grinder
WC-658/514 Pneumatic Cutter/Grinder Specifications
| Feature | Value |
|---|---|
| Model | PWC-658 / PWC-514 |
| Air Pressure | 90 PSI (6.2 Bar) |
| Air Consumption Max | 33 CFM (934L/min) |
| No Load Speed | 10,000 RPM / 12,000 RPM |
| Weight | 4.6 lbs (2.1 kgs) |
| Length | 11-3/4” (298mm) |
| Air Inlet | 3/8” NPSM |
| Water Inlet | 1/8″ BSPT |
| Spindle | 5/8”-11 / M14-2 |
| Maximum Disc Capacity | 6″ (150mm) / 5” (125mm) |
| Max. HP | 1.4 HP |
Equipment Included
| Item | Quantity |
|---|---|
| Reusable, Stackable Toolbox | 1 |
| Air/Water Twin Hose Assembly (30ft / 9.1m) | 1 |
| Alpha® Elite Q Blade | 1 |
| Rust Inhibitor Oil (3.4oz / 100ml) | 1 |
| Quad W Adapter Assembly | 1 |
| Safety Guard | 1 |
| Side Handle | 1 |
| Handle Bracket Assembly | 1 |
| Quick Connect Ball Valve | 1 |
| Hex Wrench (2mm) | 1 |
| Hex Wrench (5mm) | 1 |
| Spanner Wrench (19mm) | 2 |
| Extension Rod and Nylon Lock Nut (M12) | 1 |
ALPHA PWC-658/514 Pneumatic Cutter/Grinder Related Documents
| Document Type | Link |
|---|---|
| Manual | PWC-658/514 Manual v0125 |
| Parts-Schematic | PWC-658/614 Parts/Schematic v0125 |
| Parts-Schematic | PWC-658/614 Parts/Schematic v0425 |
| Parts-Schematic | PWC-514 Parts/Schematic v0125 |
| Parts-Schematic | PWC-658/614 Parts/Schematic v0725 |
| Parts-Schematic | PWC-514 Parts/Schematic v0725 |
| Flyer | PWC-658 Pneumatic Cutter/Grinder |
| Flyer | PWC-514 Pneumatic Cutter/Grinder |
| Flyer | New From Alpha 2025 |
| Other | Warranty Information |
Additional Information
| PartNo | UPC Code | Pkg. Weight (lbs) | Package Dimensions | Commodity Code | Country Of Origin |
|---|---|---|---|---|---|
| PWC-658 | 749173430336 | 15.7 | 16in x 12in x 7in | 8467.11.5090 | Taiwan |
| PWC-514 | 749173430343 | 15.5 | 16in x 12in x 7in | 8467.11.5090 | Taiwan |
Frequently Asked Questions
I have a large enough compressor but the PWC-658 bogs down from time to time. What can I do to improve the operation?
Since you may have multiple equipment connected to compressed airline, you may be short of air flow available from your compressor or airline.
What is the difference between wet grinders on the market and Alpha® PWC-658?
Most wet grinders have been built with an alteration of common pneumatic high-speed angle grinders designed for dry applications with exterior water feeds. The PWC-658 is designed from scratch as an industrial wet grinding tool for the stone industries. With this said, the Alpha® wet cutter/grinder is built with more than 35 years of experience producing wet polishers and voices from stone fabricators.
How can I use the PWC-658 for cutting application without a common flange and lock nut set?
Alpha® recommends using a cutting blade with a Quad-W Adapter that distributes water on both sides of the blade effectively. The Quad-W Adapter is the standard accessory that comes with the PWC-658, but you can also purchase the Quad-W Adapter at Alpha® authorized distributors.
What is the warranty on the PWC-658?
One year warranty (See manual for details).
How can I get the parts list and schematic for the PWC-658?
You will find it in the Related Documents section
Can I use the PWC-658 as a dry cutter or a dry grinder?
Yes, you can. Alpha® recommends the Ecoguard CX, W6, or GX to replace steel safety guard so that you can connect to a HEPA vacuum to collect dangerous silica dust from the cutting edge according to Table 1 of OSHA silica rule.
What is the best maintenance method for long term use of PWC-658?
Alpha® recommends operating the PWC-658 in conjunction with a Filter/Regulator Manifold System to minimize Humidity and Debris entering the motor housing with compressed air. Alpha® also recommends daily maintenance by using several drops of Rust Inhibitor Oil from the Oil Port then distribute to Cylinder and Roter area by moving spindle for a few turns so that steel surfaces would receive a coating of Rust Inhibitor Oil to prevent from Rusting. Alpha® highly recommends this daily method of maintenance at the end of the shift.
Shall I use Automatic Oiler so that Cylinder and Roter are always coated with oil so that I don’t have to oil daily?
Alpha® does not recommend Automatic Oilers since the Muffler will be soaked with dirty oil then clogged in a short time and excess oil will be on stone to stain and floor would become very slippery that would be the safety hazard.
I feel loss of power although there is no change with working parameters. How can I fix this issue?
Alpha® recommends replacing mufflers that must have been old and clogged so that compressed air cannot exit from muffler. You can remove the Exhaust Deflector with screwdriver then replace it with new one that should release exhaust properly to ensure the original power. During this operation, you can adjust the direction of exhaust air by spinning Deflector.
How can I change the angle of Spring Return Throttle Lever?
You need 48mm spanner to loosen Nut (Part No. 60) then change the angle to desired position then tighten once again so secure.
The Elite Q blade came with PWC-658 for granite/quartzite/engineered stone. However, I need to cut porcelain/sintered slab on my job. Which blade shall I use for these materials?
Alpha® recommends the Katana Q blade for porcelain/sintered slab application. https://www.alpha-tools.com/Pages/ProductDetails.aspx?PageCode=3160
Does Alpha® offer an electric high-speed angle grinder with a center water-feed system?
Yes, you can. Alpha® recommends the Ecoguard CX, W6, or GX to replace steel safety guard so that you can connect to a HEPA vacuum to collect dangerous silica dust from the cutting edge according to Table 1 of OSHA silica rule. CX - https://www.alpha-tools.com/Pages/ProductDetails.aspx?PageCode=2920 W6 - https://www.alpha-tools.com/Pages/ProductDetails.aspx?PageCode=1670 GX - https://www.alpha-tools.com/Pages/ProductDetails.aspx?PageCode=2930
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