Ultra Flat Bags are typically deployed as the first tool at a rescue scene — inserted to create initial clearance, then supplemented with S.Tec or C-TEC bags for main lifting. Extremely low air requirement means they are ready in seconds. Available in 4 sizes: UF 1, UF 3, UF 6, and UF 10.
All 4 Sizes — Complete Specifications
| Model | Dimensions (L×W) | Insertion Height | Max Capacity | Max Lifting Height | Weight | Product # |
|---|---|---|---|---|---|---|
| UF 1 | 130 × 140 mm | 1.6 cm (0.6") | 1.0 t | 7.5 cm (3.0") | 0.4 kg | 1314018801 |
| UF 3 | 200 × 255 mm | 1.6 cm (0.6") | 3.3 t | 12.0 cm (4.7") | 1.0 kg | 1314018701 |
| UF 6 | 295 × 295 mm | 1.6 cm (0.6") | 6.4 t | 16.5 cm (6.5") | 1.7 kg | 1314018601 |
| UF 10 | 370 × 370 mm | 1.6 cm (0.6") | 9.6 t | 20.3 cm (8.0") | 2.4 kg | 1314020701 |
All models: 8 bar (116 psi) operating pressure · 1.6 cm insertion height · EN 13204, CE marked
- Max capacity: 1.0 t
- Dimensions: 130 × 140 mm
- Max height: 7.5 cm
- Weight: 0.4 kg
- Pressure: 8 bar (116 psi)
- Product #: 1314018801
- Max capacity: 3.3 t
- Dimensions: 200 × 255 mm
- Max height: 12.0 cm
- Weight: 1.0 kg
- Pressure: 8 bar (116 psi)
- Product #: 1314018701
- Max capacity: 6.4 t
- Dimensions: 295 × 295 mm
- Max height: 16.5 cm
- Weight: 1.7 kg
- Pressure: 8 bar (116 psi)
- Product #: 1314018601
- Max capacity: 9.6 t
- Dimensions: 370 × 370 mm
- Max height: 20.3 cm
- Weight: 2.4 kg
- Pressure: 8 bar (116 psi)
- Product #: 1314020701
Insertion Height Comparison
| Bag Type | Insertion Height | Pressure | Primary Use |
|---|---|---|---|
| Ultra Flat | 1.6 cm (0.6") | 8 bar | Tightest-access first tool |
| S.Tec | 2.5 cm (0.98") | 12 bar | High-capacity rescue lifting |
| Mini Bags | ~2 cm | 8 bar | Versatile square/rectangular rescue |
Ultra Flat bags are typically deployed first to create initial clearance, then S.Tec or C-TEC bags supplement for main lifting.
Ultra Flat Bags — Extended Deployment Guide
Vetter Ultra Flat bags are the standard first-access tool at rescue scenes where clearance is severely restricted. Their 1.6cm (16mm) deflated profile can be inserted under vehicle body panels, between collapsed structural elements and into machinery gaps where even the Vetter Mini bag cannot enter. Once inserted, the extremely low air requirement means the bag reaches operating pressure in seconds — creating immediate initial clearance for other rescue tools to follow.
The four Ultra Flat models (UF 1, UF 3, UF 6, UF 10) cover a capacity range from 1 tonne to approximately 10 tonnes at 8 bar operating pressure. This capacity range is appropriate for the initial lift phase of most vehicle extrication scenarios — creating enough clearance to insert standard S.Tec or C-TEC bags for the main lift to full extraction height. Many rescue teams deploy two Ultra Flat bags side by side to increase the effective lifting area across a wider vehicle underbody section.
Ultra Flat bags are also used in stackable configurations: placing two bags of the same footprint directly on top of each other doubles the total lift height from a single insertion point. This technique is commonly used at building collapse incidents where the debris field must be elevated progressively to create a safe working void. The maximum recommended stack is two bags — adding a third significantly reduces stability and is not recommended under EN 13204 operating guidelines.
When to Choose Ultra Flat vs. Ultra-Thin
Both series target restricted-clearance rescue scenarios. The choice depends on the available gap and the required lift capacity.
| Factor | Ultra Flat (UF) | Ultra-Thin (UT) |
|---|---|---|
| Deflated insertion profile | 1.6 cm (16mm) | 12 mm |
| Available capacities | 1T, 3T, 6T, 10T (4 sizes) | 5T, 10T, 20T (3 sizes) |
| Use when gap is | 16mm or above | Below 16mm — tight as 12mm |
| Maximum lift height | Up to 20.3 cm (UF 10) | Up to ~220mm (UT 20T) |
| Typical first-deploy scenario | Standard restricted-access vehicle rescue | Near-zero clearance — SUVs, machinery |
Technical Features
- Deflated insertion height: 1.6 cm (0.6 inch) — all four models
- Operating pressure: 8 bar (116 psi)
- Certification: EN 13204, CE marked
- Material: Neoprene-coated fabric — chemical resistant, abrasion resistant
- Controller compatibility: Standard Vetter quick-coupling fittings — compatible with twin-valve and deadman controllers
- Stackable: Yes — maximum 2 bags per stack for doubled lift height
- Air requirement: Very low — fast inflation from a standard breathing air cylinder
Application Scenarios
| Scenario | Ultra Flat Deployment |
|---|---|
| Vehicle extrication — restricted clearance | UF bag inserted under sill or chassis to create initial lift clearance for full S.Tec bag deployment. UF 6 or UF 10 used depending on load weight. |
| Industrial machinery recovery | Machinery that has settled with near-zero ground clearance. UF bags establish first lift while rigging is prepared for main recovery. |
| Building collapse — USAR | Collapsed floor panels separated by minimal gap. UF 3 or UF 6 inserted to create working void for search teams. |
| Rail incidents | Derailed vehicles presenting limited clearance between car and track bed. First-access tool before heavier lifting equipment is brought to the scene. |
| Stacked lift operations | Two UF bags stacked on same footprint to achieve greater lift height from a single access point — useful in progressive debris elevation. |
Frequently Asked Questions
Related Products
Specify Ultra Flat bags for your rescue fleet
Fire and Rescue Tech supplies the complete Vetter lifting bag range — including all four Ultra Flat models — across the UAE, GCC and Africa. Contact us with your vehicle rescue scenario and clearance requirements and we will specify the correct model or complete system.
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