Security System sliding table saw
Your hands and fingers are your most important tools
Press, turn, secure: The RUWI clamping and sawing system holds workpieces of any shape on the sliding carriage of your sliding table saw: tool-free in about 10 seconds. Your hands stay out of the danger zone, even when working with small, narrow, or angled parts.
Tested by the German Social Accident Insurance Association (BGHM) and awarded the DGUV Test seal.
Compatible with Altendorf, Martin, Felder X-Roll, Format 4, and Hammer Series 3; other manufacturers available upon request.
A rip cut, clamped at two points. Your hands guide the sled, not the wood.
The Selection
Classic or Premium?
Both sets securely clamp small, narrow, and angled workpieces to the sliding carriage. The difference lies in trimming long workpieces: this requires two clamping points.
Classic
€477,12
Feed Stop · Auxiliary Stop (Angled) · 1, swivel clamp s · 12.1 kg
For cutting small, narrow, and angled pieces. The starter set for clamping instead of holding.
To the Classic
Premium
€715,68
Feed Stop · Angled Auxiliary Stop · 2 Narrow Auxiliary Stops with Holding Tips · 2 swivel clamp · 15.5 kg
If you're also trimming long workpieces and planks directly on the carriage: Two clamping points will hold even warped wood in place.
Go to Premium
You can start small: A second swivel clamp (€190.85) will later upgrade the Classic for trimming. You won’t have to buy anything twice.
That's what it's built for
Three cuts where my hands were too close before
Small parts and narrow strips
Strips under 30 mm, small blocks, spacers: anything you’d normally guide with a push stick and your fingertips. You place the auxiliary stop on the sliding carriage, adjust the angle and distance from the saw blade, and the feed stop presses the workpiece against it. Your fingers stay outside the 120-mm danger zone around the saw blade, which the BGHM specifies as the limit (Occupational Safety Compact No. 060). And the tenth cut is just as precise as the first.
Wedges, Slopes, and Angles
Anyone who cuts wedges knows this: Flat sections get pulled into the gap between the saw blade and the table with a solid blow. Even 5-mm wedges can fly across the workshop. Using the feed stop and the angled auxiliary stop, you can position workpieces at any angle; the clamping cylinder and pressure plate adjust to the workpiece size. During the cut, the wedge is clamped securely in place rather than held by hand.
Trimming Long and Warped Planks
When trimming, clamp a clamping cylinder with a swivel arm to the feed slide at the front and secure the board; at the back, the feed stop presses against the end face. With the Premium Set, you clamp one “ swivel clamp ” at the front and one at the back, and place the two narrow auxiliary stops with holding tips in between. This allows you to rotate and clamp even a warped board until the cut fits perfectly, without needing a second person to hold it in place.
And anyone who uses it at work usually says the same thing: They wouldn't want to be without it.
Here's how to use it
Insert into the slot , rotate 90°, and clamp in place
Insert the clamping cylinder into the slot of the sliding carriage from above using the slot nut : at any position, including at an angle or in a combination.
A quarter-turn securely locks the slot nut into the slot without the need for any tools.
Place the workpiece and clamp it in place: It’s set up in about 10 seconds. The feed stop holds it against the auxiliary stop.
The premium set with all components. A top-down view of the saw will follow.
The system arrives pre-assembled. The clamping cylinder is mounted at each point on the slot. The feed stop holds the workpiece against the auxiliary stop; you can adjust the distance and angle to the saw blade using the clamping lever . The pressure plate adapts to the shape and size of the workpiece via a ball joint and rubber pad without damaging the surface. The swivel arm rotates 360° and is clamped using the handle. The wall panel powder-coated steel unit keeps all components within easy reach next to the saw, so that the safe solution is just as quick to use as the unsafe one.
The function of the protective guard remains unchanged: It is lowered to the height of the workpiece as usual, and the riving knife remains in place. The system supplements your saw's safety features; it does not replace any of them.
Why Clamping?
Get the hang of the rules—without sacrificing your time
DGUV Rule 109-606 explicitly lists clamping and feeding aids such as “Fritz and Franz,” push sticks, hold-down devices, and trimming aids as suitable work aids (Chapter 3.1.1, April 2019); the BGHM supplements this with a 120 mm danger zone around the saw blade (Work Safety Compact No. 060). The sawing system implements exactly this logic—so quickly that the “oh, it’ll be fine” argument doesn’t even come up. A BGHM analysis shows that this is worthwhile: if narrow strips were cut safely and guard covers were consistently lowered, approximately 67 percent of accidents involving table saws and sliding table saws could be prevented, along with 80 percent of accident-related costs (BGHM Magazine 4/2023).
The system has passed the voluntary type testing conducted by DGUV Test and bears the DGUV Test mark: tested by the Testing and Certification Body for the Wood and Metal Division in accordance with GS-HM-01 “Woodworking Machines,” Certificate HM 260078, renewed in July 2026 and valid through July 2031. A test mark does not guarantee that accidents will not occur; it confirms that the device does what it is supposed to do: hold the workpiece and keep your hands out of the danger zone.
Honestly Compared
Fritz and Franz, AIGNER, Camera Systems – and Where We Stand
"Fritz and Franz" remains a classic—we'll say that straight out.
The sawing aid developed by the former Woodworkers’ Occupational Safety Association (now BGHM) can be built yourself for just a few euros or purchased ready-made. It’s the simple, affordable choice for safely cutting small and narrow pieces to length. If you’re comfortable using it, you won’t need anything else. Our system picks up where Fritz and Franz fall short: It clamps tool-free in seconds instead of using screws, holds workpieces even at an angle or in a wedge shape, and trims long, warped planks on its own.
There are two additional methods involved. AIGNER from Reisbach, our partner, handles a different task: Their products guide and deflect workpieces at the rip fence, while we clamp them securely onto the sliding carriage. The two systems complement each other and do not replace one another. The AIGNER deflector next to the sawing system is therefore a practical combination.
And the camera systems from machine manufacturers—such as Altendorf Hand Guard and Felder PCS—are impressive pieces of technology that offer a different level of protection: They stop the blade, but are tied to a specific machine. Our solution keeps your hands out of the danger zone from the very beginning—on the saw that’s already in your workshop, no matter which manufacturer made it.
If you're a trainer
The first apprentice at the sawmill is the most genuine occasion
Many companies don’t upgrade their equipment after an accident, but rather when new responsibilities arise: the first apprentice at sliding table saw, or the desire to provide the workforce with a higher level of safety. This is exactly where the system proves its value: the work process is designed so that hands don’t have to enter the danger zone in the first place. And anyone purchasing equipment for training or for the workforce almost always opts directly for the premium set—from training workshops to workshops for people with disabilities.
Do the Math Before You Buy
How much the investment costs relative to other options
The Classic System costs €477.12 gross (€400.94 net): about one-ninth of the average €3,631 in direct costs caused by a single accident at a table-top or sliding table saw (BGHM, 2019 data); continued pay, replacement staff, and lost orders are added to this. No guaranteed bill, but a figure that a business can use to estimate costs.
Depreciation and Subsidies
Both options fall below the threshold for low-value assets of €800 net (Section 6(2) of the German Income Tax Act (EStG)). This means you can write them off immediately and in full in the year of purchase. You should consult your tax advisor to determine how this fits into your tax planning; you can calculate it here by entering a few details.
And a straightforward “no” to subsidies: The BGHM does not provide purchase subsidies for occupational safety equipment. The BG BAU’s occupational safety grants apply only to its member companies, and the format circular saw grant supported systems that detect a hand near the blade and stop the saw—not mechanical clamping systems; furthermore, the grant program was realigned as of July 2026. We’re telling you this before you apply.
Not a sales pitch, but a workshop discussion
Reiner Ruggaber, Master Carpenter and Founder
Will it fit your saw? Ask the person who designed it
Altendorf, Martin, Felder X-Roll, Format 4, Hammer Series 3: We have the right swivel arms available for these models. For Panhans, SCM, Holzkraft, Minimax, and other machines with a “ slot ” in the sliding carriage, we’ll check on request: Just tell us the machine model and groove dimensions, and we’ll let you know if it’s a good fit before you place your order. Reiner Ruggaber is a master carpenter himself and will take the ten minutes to help you.
Or watch it live
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Frequently Asked Questions
Frequently Asked Questions About the Sawing System
I don't have an Altendorf, Martin, or Felder—will the system still work?
If your sliding table saw has a sliding carriage with slot —for example, from Panhans, Robland, SCM, Minimax, or Holzkraft—it will likely be a good fit. Tell us the machine model and groove size, and we’ll check it out and let you know: +49 7402 8414.
Is it worth it—or should I just build something like this myself?
Honestly: For occasional cuts, a homemade setup or a basic model will suffice, and if you enjoy building contraptions, you can even assemble individual parts using clamps and slotted nuts. A purchased system offers three advantages that a homemade setup lacks: tool-free clamping in seconds, certified type conformity (DGUV test mark), and swivel arms specifically designed for each machine type. In a commercial setting, there’s an additional requirement: Before using any piece of equipment, you must assess the hazards (§ 3 BetrSichV). With a purchased system, you can rely on the manufacturer’s specifications; with a homemade setup, you’re solely responsible for this assessment.
Is it suitable for trimming heavy, severely warped planks?
The Premium Set secures planks at two points and holds them securely even if they’re warped—that’s what it’s designed to do. For very heavy, severely warped planks, it’s best to discuss your materials with us over the phone beforehand.
How quickly will it be ready for use—and how will I get it?
The system arrives pre-assembled in a box via DHL or DPD, usually within 3–5 business days, with tracking information sent by email. You set it up on the saw at tool-free : Insert the clamping cylinder into the slot, rotate it 90°, and clamp it in place—the workpiece is secured in about 10 seconds. The included wall panel keeps all components within easy reach next to the saw.
What exactly does the DGUV Test mark mean?
This is the voluntary certification mark issued by the testing and certification bodies within the DGUV Test program. The RUWI system has passed the type testing in accordance with GS-HM-01 “Woodworking Machines”; the current certificate, HM 260078, was renewed in July 2026 and is valid through July 2031. A certification mark does not guarantee that accidents will not occur. The risk assessment and training of your employees remain the operator’s responsibility (Sections 3 and 12 of the BetrSichV).
Clamp instead of holding—choose your set
Direct from the manufacturer · Personal consultation: +49 7402 8414 · Family-owned business since 2000 · All prices include sales tax.