Sigma II Neo: Inline Induction Cap Sealer
Air-cooled induction foil cap sealing for 20–120 mm closures at up to 55 feet per minute, on a 230V single phase supply, 50-60Hz.
The Sigma II Neo is the mid-range workhorse in the Sigma range. One universal sealing head handles closure from 20 mm to 120 mm, so a narrow cap diameter bottle and a wide mouth jar seal at the same line speed without change part, and it holds that seal steady even with voltage fluctuations.
55 ft/min
Max Line Speed
20–120 mm
Cap Range
350 mm
Sealing Coil Travel
100% Air-Cooled
No Water Requirement
55 ft/min
Max Line Speed
20 to 120 mm
Cap Size Range
230V 1-Ph
Power Input
Universal
Sealing Head
Stainless
Construction
100% Air-Cooled
Cooling Type
Continuous, Reliable Sealing Across Multiple Bottle Sizes
IN SHORT
The Sigma II Neo is an automatic, air-cooled inline induction cap sealer built for lines running multiple products. As capped bottles pass beneath the sealing head, it bonds the foil liner to the container neck for a tamper-evident, leak-proof seal on diameters from 20 mm to 120 mm at up to 55 ft/min—with minimal setup changes between products.
The challenge isn’t simply sealing bottles—it’s sealing every bottle correctly despite changes in container size, shape and production speed. Frequent adjustments to machine settings, sealing head position or conveyor speed can lead to inconsistent seals, product leakage, rejected batches and costly downtime.
The Sigma II Neo is designed to eliminate these variables. Its universal sealing head and intelligent power control deliver consistent sealing performance across a wide range of bottle diameters and shapes without frequent mechanical adjustments or complex parameter changes.
How the Sigma II Neo Seals Your Containers
Sealing happens without contact. A capped container passes under the sealing head (Sealing coil), and an electromagnetic field bonds the foil liner to the container rim.
1
Capped Container Enters
Filled, capped containers move along the conveyor toward the sealing head at your set line speed.
2
Passes Under the Sealing Head (Sealing Coil)
Each container passes beneath the universal sealing head, with no contact between machine and cap.
3
Foil Liner Heats
The electromagnetic field heats the foil liner inside the cap, melting its bonding layer.
4
Hermetic Seal Forms
The liner bonds to the container rim, forming a leak-proof, tamper-evident seal as the container exits.
What the Sigma II Neo Gets You
Every feature maps to something you feel on the floor: uptime, seal integrity and consistent quality across every product.
Universal Head, 20–120 mm
Seal your smallest and largest caps at the same line speed. No need to swirl/tilt the sealing head (Sealing coil) and no changeover downtime between SKUs.
100% Air Cooled, Compact Body
A single-body build with no water circulation and no water lines. Smaller footprint, relatively maintenance free and easy to relocate to another line.
Steady on Voltage Fluctuation (210 - 260 V AC)
Output stays consistent from 210 V to 260 V AC, with spike-and-surge protection on top, which matters where the grid sags at peak load.
Same Machine Applicable to Glass and Any Plastic
The same Sigma II Neo seals glass containers and all plastic types—HDPE, PP and PET—without changing parts. One machine covers your full container range, whatever the material.
350 mm Sealing Coil Travel
Sealing head height can be adjusted as per container height. Tall and short containers run on the same frame, standard or customized.
Microprocessor Control
Inbuilt microprocessor control on a simple membrane panel keeps sealing settings repeatable every cycle, built for trouble-free, round-the-clock operation.
Closure, Sealing-Head & Container Fit
Type of Closures
- CRC (child-resistant) caps
- Dome caps
- Sports (spout) caps
- Snap-on caps
- CT/Flat caps
- Flip-top caps
- Conical caps
- Cap sizes 20 mm to 120 mm
Sealing-Head Options
- Standard flat sealing head
- Deep Tunnel sealing head
- Customized sealing head
- 350 mm sealing coil travel, standard
- Custom travel on request
Containers & Use
- Glass, all plastic (HDPE/PP/PET)
- Will seal regardless of shape and size
- Run at your desired line speed
- Suited to high-volume production
See the Sigma II Neo in Action
Watch the Sigma II Neo seal caps on a real production line — fixed, repeatable power across cap sizes, closure types and container materials.
Which Sigma Model Suits Your Sealing Requirement?
Pick by line speed and the interface your operators want. Most lines land on the Sigma II Neo.
-
Attri-
bute
- Attribute
- Sigma Eco
- Sigma I Neo
- Sigma Il Neo
- Sigma Ill Neo
Tier
Entry
Mid level
High level
Fast
Max line speed
25 ft/min
Up to 32 ft/min
Up to 55 ft/min
80 ft/min
Control panel
ane panel
ane
ane
screen
Fits the Line You Already Run
The Sigma II Neo can be placed on your existing line and connects to a 230V single-phase point, with no water circulation. Position the sealing head (Sealing coil), set your speed, and it runs.
For inline quality control, add optional detection and rejection (no-cap and no-foil detectors, a conveyor stop, auto reject and reject verification) fitted to match the checks your quality and compliance teams already run. Installation and commissioning support come with it.
Sigma II Neo Technical Specifications
Parameter summary for engineering evaluation and line specification.
- Parameter
- Sigma II Neo Specification
Type
Automatic inline (online) induction cap sealer
Max Line Speed
Up to 55 feet/min
Cap Size Range
20 mm – 120 mm
Power Input
230V AC, single phase, 50/60 Hz (210–260V tolerant)
Cooling
100% air-cooled
Construction
Stainless steel enclosure
Coil Movement
350 mm standard; customizable to requirement
Control
Microprocessor with membrane panel; output adjustable to 100%
Sealing Head
Universal: flat/deep tunnel/peep tunnel/customized
Protection
Over-voltage, over-current, spike & surge, over-temperature cut-off
Dimensions / Net Weight / Output (bpm)
Contact Sigma CapSeal engineering to confirm for your configuration
Footprint, power draw and certification details vary with cap and closure type; confirm with Sigma CapSeal applications engineering.
50+
Years of Experience
85+
Countries Served
Global
Reach & Service
MNC
Client References
Responsive Service
The machine on day one rarely decides repeat business; whether the spare part shows up and the engineer answers does. We back the Sigma II Neo with global service and spare-parts support.
Why Choose Sigma Capseal
Sigma CapSeal designs, manufactures and supports induction sealing and cap and closure automation that improves product safety, line efficiency and packaging integrity across FMCG, pharmaceutical, personal care, chemicals and food industries.
With five decades of domain expertise, hands-on R&D and close partnerships with multinational customers, the Sigma II Neo reflects a simple commitment: keep your products safe, your seals consistent, and your lines running.
Frequently Asked Questions: Sigma ll Neo
What cap sizes does the Sigma II Neo seal?
Any closure from 20 mm to 120 mm, on a single universal sealing head, at the same line speed.
Is it air-cooled or water-cooled?
100% air-cooled, which keeps the footprint small and maintenance low, with no water circulation or water supply to install.
Which closure types and foils are supported?
CRC, dome, sports, snap-on, CT/flat, flip-top and conical caps via a flat, deep tunnel, peep tunnel or customized sealing head, sealing glass and all plastic (HDPE/PP/PET) containers.
What is the line speed?
Up to 55 feet per minute, depending on cap size, foil and container.
What power supply does it need?
230V AC, single phase, 50/60 Hz, tolerant from 210V to 260V, with steady output through mains voltage fluctuation.
What after-sales support and warranty come with it?
Global after-sales service and spare-parts support; warranty terms are confirmed with your quote.
Get a Quote Built Around Your Line
Tell us your industry, container, cap size and target throughput, and we will spec the right sealing head and quote it. Most enquiries get a response the same working day.