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Description
VELP AMI4 Multi-Position Magnetic StirrerOverview The AMI 4 is an illuminated magnetic stirrer with 4 separately controlled positions. It is particularly useful for titrations where optimum lighting conditions are needed in order to identify the colorimetric end point. It is especially recommended for titrations that have slight color changes. Electronic speed regulation: up to 1100 rpm, Stirring volume (H2O): up to 5 L per position Distance between stirring position centers: 150 mm
Overview
The AMI 4 is an illuminated magnetic stirrer with 4 separately controlled positions. It is particularly useful for titrations where optimum lighting conditions are needed in order to identify the colorimetric end point. It is especially recommended for titrations that have slight color changes.
Electronic speed regulation: up to 1100 rpm, Stirring volume (H2O): up to 5 L per position
Distance between stirring position centers: 150 mm
Features:
- Rugged Design
- Control panel is shielded from liquid spills
- Epoxy-coated tough steel casing
- Long life operation
- Applications Oriented
- 4 places, maximum 4 x 5 liter flasks (max. Ø 150 mm)
- Illuminated surface for visualization of particles and color changes
- Ideal for microtitration, in particular for subtle color changes
- Soft start but rapidly reaching set speed
- Excellent speed control (electronic), even at low speed
- Convenient Operation
- Ergonomic - very low height
- 4-position model provides independent speed regulation
- Speed regulation up to 1100 rpm
- Universal mains voltage range
- Light weight
Key attributes
| Maximum volume (L): | 20 |
| Minimum Volume (L): | N/A |
| Speed max (rpm): | 1100 |
| Speed min (rpm): | 20 |
| Max temperature (◦C): | N/A |
| Plate: | Multiposition |
| Plate material: | epoxy painted metal structure |
| Torque max (Ncm): | N/A |
| Controls: | Analog |
| Timer: | No |
| Programmable: | No |
| Reverse rotation: | No |
| Warranty (years): | 3 |
| Weight (lbs): | 8.8 |
| Dimensions Width (in): | 23.6 |
| Dimensions Height (in): | 2.2 |
| Dimensions Length (in): | 10.6 |
Manufacturer Specifications
| Construction material: | epoxy painted metal structure |
| Stirring volume (H2O): | up to 5 liters per position |
| Distance between stirring position centres: | AMI 4 150 mm |
| Power: | AMI 4 4.8 W |
| Weight: | AMI 4 4.0 Kg (8.8 lb) |
| Dimensions (WxHxD): | AMI 4 600x55x270 mm (23.6x2.2x10.6 in) |
| Electronic speed regulation: | up to 1100 rpm |
| Speed regulation: | excellent speed regulation even at low number of revolutions |
| Stirring system: | high-power driving magnet type ''PCM'' operated by a mono-phase motor for continuous operation |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Durable, Odorless, and Reliable — A Must‑Have 3‑Pack
Size: 3Pack 16"x20" Black
I’m really impressed with this 3 Pack PTFE Teflon Sheet for Heat Press (16 x 20"). The quality is excellent, and the non‑stick surface makes every press come out clean and smooth. One thing I really appreciate is that there’s absolutely no smell, even when using high heat. It makes the whole process more comfortable and professional.
These sheets offer great protection for both the heat press and the materials. They prevent scorching, keep the plates clean, and stop any vinyl or ink from sticking. My projects come out more consistent because the sheets help distribute heat evenly and act as a reliable barrier.
The 3‑pack is a huge bonus. I keep one on my press, one as a backup, and one for different materials like HTV or sublimation. It saves time and keeps everything cleaner when I’m working on multiple items.
The 16 x 20 size is perfect for shirts, tote bags, and larger designs, and the sheets stay flat without curling. If you want something that protects your equipment, has no smell, and delivers clean results every time, this set is definitely worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
★★★★★ 5
T shirt Quilt Use
Size: 3Pack 16"x20" Black
I bought this specifically for ironing interfacing onto t-shirts before cutting into squares. Some of the memory t-shirt's had ‘puffy paint’ and other shirts had uncertain designs that may be ruined by ironing without protection or by using just a pressing cloth (cotton material). A teflon sheet was suggested on a you tube video to ‘play it safe’ when making a memory quilt. I felt the heat resistance teflon helped because you need to hold iron in same place for a longer time than ‘regular ironing’ movement. It worked well, the only (minor) issue is you can’t see through it. It did not interfere at all because positioning of shirt and interfacing was in place. I’m a ‘newby’ at this process; this worked for me. This is a good quality material; one sheet can be used for ironing t-shirts forever, I plan on using the other two teflon sheets to line outdoor BBQ drawer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
★★★★★ 5
High Quality & a Must-Have for Any Heat Press User
Size: 10Pack 12"x16" Black
These PTFE sheets are an absolute must if you use a heat press. I use them all the time and the quality is excellent. They’re thick, durable, and truly non-stick, which makes pressing vinyl so much easier and cleaner.
They protect my projects and my heat press perfectly, and they hold up well even with frequent use. I also love the size—plenty of coverage for different projects. This 10-pack is a great value for the price, especially if you’re pressing often like I am. I’ll definitely be keeping these on hand and repurchasing when needed.
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Reviewed in the United States on January 24, 2026
★★★★★ 5
Must have
Size: 3Pack 16"x20" Black
These Teflon sheets are a must-have for heat press projects! They protect my designs and heat press perfectly without sticking or leaving any marks. The material feels durable, reusable, and easy to clean after multiple uses. They handle high heat really well and make crafting so much smoother and less stressful. Perfect for sublimation, HTV, and other transfer projects. Great quality and definitely worth buying for anyone who does crafting or custom apparel!
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Reviewed in the United States on May 12, 2026
★★★★★ 4
They do the job
Size: 3Pack 16"x20" Black
They work well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
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