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SainSmart Genmitsu Vacuum Clamp Pod, Aluminum CNC Hold Down Kit for Woodworking, Metal, Acrylic, High-Precision CNC Router Accessory for Milling Project, Size 4.7" x 4" x 0.6" (120 x 102 x 15mm)

Based on 41 reviews
Condition: New
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Availability: In Stock.
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Arrives Tuesday, Nov 3
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At a glance

Condition
New
Dimensions
3.94 x 3.94 x 1.57 in
Weight
1.17 lb
In the box
Vacuum Clamp Pod Kit

Features 5

  • Vacuum Holding: Securely holds workpieces from as small as a 24mm coin to as large as a 90mm wooden block using a vacuum pump, saving time searching for a suitable clamp while preserving 100% of the engraving area. Your material stays perfectly steadyno traditional clamping required and nothing for the router bit to collide with
  • Designed for Diverse Materials: Works with wood, acrylic, plastic, metal, etc., including irregularly shaped objects, as long as the side placed on the vacuum chuck is flat enough to cover the entire rubber sealing area. Note: Only one seal ring can be used at a time.
  • Universal CNC Compatibility: Equipped with M6 screws and M6 T-nuts, making it easy to mount on MDF/aluminum board with M6 screw holes or a hybrid table with a T-slot track. Compatible with Genmitsu CNC machines and most CNC routers on the market.
  • Durable Construction: Constructed from high-quality aluminum for superior strength. The vacuum pod surface is marked with a length scale for quick and accurate measurements.

Description

The Genmitsu vacuum clamp pod uses vacuum adsorption to create a secure hold using a vacuum pump (not included). The sealing ring prevents air leakage, enhancing strong and stable suction for precise CNC engraving. Securely holds wood, bamboo, acrylic, plastic, metal, and more, with a clamping range from 24mm to 90mm. Comes with different seal ring sizes to accommodate various workpieces: Φ24mm: For materials Φ24–Φ40mm Φ40mm: For materials Φ40–Φ60mm Φ60mm: For materials ≥Φ60mm Φ95mm: For materials ≥79x79mm Note: Only one seal ring can be used at a time. Use multiple vacuum clamps together to increase the suction area and secure larger or irregularly shaped workpieces. Mix and match configurations to fit your project needs—unleash your creativity and explore endless possibilities! Package List: Here at SainSmart we have been serving the maker community for years, starting in the early days with high-quality electronic parts and into today with our Genmitsu line of CNC mills for every experience level. We love making, we are just a bit different than the people we make our products for. Our passion is making the best, most affordable tools available and getting them out to the maker community at large to do their thing!

Specs 6

Manufacturer SainSmart
Part Number 182486381
Item Weight 1.17 pounds
Product Dimensions 3.94 x 3.94 x 1.57 inches
Item model number 182486381
Item Package Quantity 1

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


All aluminum construction
I have not used them yet but the build quality looks and feels a lot better than some others I have tried that are plastic.
Reviewed in the United States on May 30, 2026 by Pete

more fittings needed
would have been nice to include hose barb fittings. I am disabled and rely on the web, always end up with. multiple items.
Reviewed in the United States on April 14, 2026 by Michael A. Swindell

Great Clamp for Small Items
I picked up this SainSmart Genmitsu vacuum clamp pod to do general workholding, and it’s been surprisingly solid. The aluminum body is well-made and heavy and it sits flat with no wobble. Once you hook it up to a strong vacuum source, the grip is genuinely impressive. I tested it on a few different materials: plywood, acrylic, and a small metal plate. Everything stayed put without having to use traditional clamping or worry about the router bit bumping into clamps. The sealing surface makes it easy to get a good hold. I wouldn’t say it replaces every type of clamp in the shop, but for quick routing jobs on small workpieces it saves a ton of time. This is one of those accessories you don’t realize you need until you use it a couple of times. ... show more
Reviewed in the United States on November 20, 2025 by Yral Cenacsel

Does not fit Genmitsu 3020 pro cnc table.
I would have thought since Genmitsu makes this AND the CNC that it would be compatible, but it is not. So far I have only tested with Etching a PCB board. I had to go back to the normal clamping method that came with the CNC :( I assumed with the elongated bolt patterns that I would have little to no trouble getting 3 screws to hold it down. Boy was I wrong, and this is what we get for assuming. I can get 2 screws but not the 3rd. Unfortunately they are both on one edge, so it is raised quite a bit higher on the other end - probably a good 1/2mm difference which is miles in the CNC world, and can be pushed down which means Z movement while machining. I will definitely have to predrill into my nice bed for the 3rd screw to get any real use out of this. I'm using a 50ml Oilless lab vacuum pump, also purchased here. I imagine once you get the 3rd screw in, routing hardwood and plywood and plexi and such that this combination would be perfectly fine. I am not sure it is adequate suction to hold aluminum unless you really dial in and ease the feed speeds. Which is what you want to do anyways, just be alert and use caution it does not throw it off. An aluminum plate does not pull directly upwards off with out a lot of force, but it can slide and be pushed with just a bit of force with this setup. ... show more
Reviewed in the United States on June 2, 2026 by John S.

Beats the old super glue/painter's tape trick
This has replaced super glue and painter's tape for me when holding down stock I don't want to clamp. The kit has everything you need except a vacuum pump, I put the fittings on with some teflon tape to seal the threads, lubed the o-rings with vasoline, hooked it up to my vacuum pump, clamped it down, and I'm happy. Hold down force is simple area x pressure (of vacuum in this case) so if you are trying to use this with just a shop vac expect only about 10-12lbs of hold down force, but with a good vacuum pump you can get about 50lbs which is enough for me on my small mill with aluminum. If you are pushing higher speeds on harder materials like steel maybe that won't be enough for you, but the only way to get more clamping force is to use larger stock and a larger vacuum plate, that's just physics. As long as you aren't expecting hundreds of pounds of hold down force out of a tiny plate like this I think you'll be happy with it. ... show more
Reviewed in the United States on May 30, 2025 by SD

Mighty Little Pod
I've used this for several smaller projects now that were too awkward for some of my traditional holding methods. It's much more convenient than double-sided tape as well, which can make smaller items hard to pry off off. It's built solid and comes with plenty of accessories to make sure you have what you need. Haven't noticed any leakage either. Overall it's a pretty functional and a great value. ... show more
Reviewed in the United States on August 7, 2025 by Mike N.

Great small part holder
Why did you pick this product vs others?: Excellent plate for small material holding where you can't get a clamp to work and tape is too difficult to remove. Holds really well for the different woods I have used on it. The smoother the surface the better for a tight seal.
Reviewed in the United States on June 26, 2025 by VTSnow

Love it!!!!
Wow. This is definitely something I never knew I needed, but now can't imagine not using it. Very easy to work with. Works as advertised. Made well and durable. So much better than expected!
Reviewed in the United States on July 3, 2025 by KP
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