By Raise Solutions | Security & Surveillance | August 2026 | 12 min read
You have seen it at every mall entrance, hotel lobby, office building, court, metro station and airport in India. Before you walk in, a security guard asks you to place your bag on a moving belt. Your bag disappears behind a curtain, travels through a machine, and comes out the other side — scanned, cleared, and handed back to you in seconds.
That machine is called a bag checking machine.
Most people use it every single day without knowing its name, how it works, or why it shows colours instead of a photograph. This guide covers everything — what a bag checking machine is, how it works, the different types available in India, what the colours mean, and how much it costs.
💡 Raise Solutions supplies and installs bag checking machines for hotels, malls, corporate offices, courts, hospitals and events across Vijayawada and Andhra Pradesh. Call +91 8522959096 for specifications and a free site assessment.
What is a Bag Checking Machine?
A bag checking machine — also called a baggage scanner, luggage scanner, X-ray baggage screening system, or bag scanner machine — is a security device that uses X-ray technology to see inside a bag, suitcase, backpack, or parcel without physically opening it.
The machine creates a colour-coded image of everything inside the bag and displays it on a monitor screen. A trained security operator studies the image and decides whether the bag is safe to pass through or needs to be opened for manual inspection.
Bag checking machines are used at any location where security requires knowing what people are carrying — without the delay and invasion of privacy of opening every single bag manually.
The correct technical name is X-ray baggage scanner or X-ray bag scanner. But in everyday conversation across India, people call it by many names:
- Bag checking machine
- Bag scanner machine
- Luggage scanner
- Baggage screening machine
- X-ray machine at security
- Bag X-ray machine
- Security scanner
- Parcel scanner
All of these names refer to the same device.
How Does a Bag Checking Machine Work?
The working principle of a bag checking machine is based on X-ray technology — the same fundamental science used in medical X-rays, but adapted and optimised for security screening.
Step 1 — Place the Bag on the Conveyor Belt
The visitor or passenger places their bag, backpack, purse, or parcel on the conveyor belt at the entry point of the machine. Metal items like phones, keys, and wallets may be placed in a separate tray.
Step 2 — Bag Enters the Tunnel
The motorised conveyor belt carries the bag into the machine’s scanning tunnel. Lead-lined rubber curtains at both ends of the tunnel keep the X-ray radiation safely contained inside.
Step 3 — X-Ray Beam Scans the Bag
Inside the tunnel, an X-ray generator fires a fan-shaped beam of X-ray radiation through the moving bag. X-rays are a form of electromagnetic energy that can pass through most materials — fabric, leather, plastic, paper — but are absorbed or blocked to different degrees depending on what the material is made of.
Step 4 — Different Materials Absorb Different Amounts of X-Ray
This is the critical step. As the X-ray beam passes through the bag:
- Dense metal objects — guns, knives, tools — absorb a lot of radiation and block most of the X-ray beam
- Organic materials — food, drugs, explosives, paper, wood — absorb a moderate amount in a characteristic pattern
- Thin plastics and fabrics — clothing, bags, packaging — absorb very little and let most radiation pass through
Step 5 — Detectors Capture What Passes Through
On the other side of the bag from the X-ray source, an array of electronic detectors captures the radiation that made it through. These detectors measure how much radiation arrived and at what energy level — thousands of measurements per second as the bag moves through the tunnel.
Step 6 — Computer Builds a Colour Image
A computer processes all the detector readings in real time and converts them into a colour-coded image that appears on the operator’s monitor. The entire process — from bag entering the tunnel to image appearing on screen — takes less than one second.
Step 7 — Operator Analyses the Image
The security operator studies the colour image on the monitor. Different materials appear in different colours, allowing the operator to identify what is inside the bag without opening it. If something suspicious is seen — an unusual shape, density, or material — the operator stops the conveyor and calls for manual inspection.
Step 8 — Bag Cleared or Inspected
If the operator sees nothing suspicious, the bag emerges from the other end of the machine and is handed back to the visitor. If something suspicious is flagged, the bag is manually checked.
What Do the Colours Mean on a Bag Checking Machine Screen?
This is the most commonly asked question about bag checking machines — and the answer surprises most people. The colours on the screen are not a photograph. They are a computer-generated representation of what each material is made of.
🟠 Orange — Organic Materials
Anything made of organic compounds — carbon, hydrogen, oxygen, nitrogen — appears in shades of orange to brown. This includes:
- Food items — fruits, vegetables, packed food
- Paper and cardboard
- Wood
- Leather and fabric
- Drugs and narcotics — same atomic composition as organic compounds
- Explosives — also organic in composition
- Rubber and most plastics
Orange is the colour that security operators pay the most attention to when it appears in an unusual shape or density — because both drugs and explosives show up orange.
🔵 Blue — Heavy Metals and Dense Materials
Hard metals with high atomic numbers appear in shades of dark blue to black. This includes:
- Guns and pistols — appear as distinct blue/dark shapes
- Steel tools — hammers, wrenches, screwdrivers
- Iron components
- Lead
- Dense electronic components
Blue objects with weapon-like shapes — elongated with specific proportions — immediately alert an experienced operator.
🟢 Green — Light Metals and Mixed Materials
Materials that fall between organic and heavy metal in terms of atomic number appear in shades of green. This includes:
- Aluminium
- Thin metal sheets and foils
- Alloys and mixed-composition metals
- Some electronic devices
⚫ Black — Impenetrable Areas
Areas where the X-ray beam cannot penetrate at all appear completely black. This happens when:
- Multiple dense objects overlap in the image
- An extremely thick metal object blocks the beam entirely
Black areas are a red flag in security screening — the operator cannot see what is behind the black mass. Manual inspection is typically required for bags with significant black areas.
Quick Colour Reference
| Colour | Material Type | Common Objects |
|---|---|---|
| Orange / Brown | Organic | Food, paper, drugs, explosives, clothing |
| Dark Blue | Heavy metals | Guns, steel tools, dense electronics |
| Green | Light metals | Aluminium, alloys, thin metal |
| Black | Impenetrable | Overlapping dense objects |
Types of Bag Checking Machines in India
1. Single-View X-Ray Bag Scanner
The most common type across India. One X-ray source produces one image — a cross-sectional side view of the bag’s contents. The operator sees the entire bag in one image.
Best for: Hotels, corporate offices, malls, coaching institutes, private schools, small courts
Typical tunnel opening: 600mm × 400mm (fits standard carry bags and briefcases)
Price range: ₹3,50,000 – ₹5,50,000
2. Dual-View X-Ray Bag Scanner
Two X-ray sources positioned at different angles produce two simultaneous images — a side view and a top view. The operator can see overlapping items from multiple angles, significantly reducing the chance of a hidden object being missed.
Best for: High courts, large government buildings, major hotels, airport-level security
Price range: ₹5,50,000 – ₹12,00,000
3. Dual-Energy X-Ray Bag Scanner
Uses two different energy levels of X-rays simultaneously to more accurately identify the atomic composition of each material — producing the full colour-coded (orange/blue/green) image that most people are familiar with. Single-energy scanners only produce greyscale images.
Why it matters: Dual-energy is what allows the machine to distinguish between organic material (food) and organic material (explosives) based on subtle differences in atomic composition. Security-grade deployments always use dual-energy.
Best for: Any serious security deployment — hotels, malls, corporate offices, courts
Price range: ₹4,50,000 – ₹9,00,000
4. Compact / Desktop Bag Scanner
Smaller than standard models — designed for narrow entrances, reception desks, or environments where space is limited. Smaller tunnel opening (typically 400mm × 300mm) limits the size of bags that can be scanned.
Best for: Small offices, clinics, jewellery shops, reception areas, small event checkpoints
Price range: ₹2,00,000 – ₹4,00,000
5. Large Tunnel / Cargo Scanner
Very large tunnel opening — 1000mm × 1000mm or larger — designed to scan large parcels, suitcases, cargo boxes, and industrial shipments. Used at logistics hubs, customs checkpoints, and large cargo screening facilities.
Best for: Airports (checked baggage), customs, logistics warehouses, post offices
Price range: ₹15,00,000 – ₹40,00,000+
6. Mobile / Portable Bag Scanner
Can be transported and set up quickly at temporary locations. Used for events, elections, political rallies, outdoor venues, and temporary security checkpoints. Some models are battery-operated.
Best for: Events, religious gatherings, elections, outdoor exhibitions, temporary checkpoints
Price range: ₹4,00,000 – ₹8,00,000
Where Are Bag Checking Machines Used in India?
🏨 Hotels and Resorts
Five-star and four-star hotels across India operate bag checking machines at main guest entrances. Visitors, delivery personnel, and service staff all pass their bags through the machine before entering. This is increasingly a standard security requirement for premium hotel licensing and insurance.
🛒 Shopping Malls
Large malls in Indian cities operate bag scanners at all main public entry points. The combination of high footfall, valuable merchandise, and crowded environments makes screening essential.
⚖️ Courts and Tribunals
All High Courts and district courts across India operate bag checking machines at entry gates under Supreme Court security directives. Lawyers, litigants, and staff all go through screening.
🏢 Corporate Offices and IT Parks
Large corporate campuses — especially those with government contracts, defence sector clients, or data-sensitive operations — operate bag scanning at main entry security checkpoints.
🏥 Hospitals
Large multi-specialty hospitals use bag checking machines at main entry gates to restrict weapons, contraband, and general security enhancement. Increasingly required under NABH accreditation standards.
🏫 Schools and Universities
Premium private schools and universities in urban India are deploying bag checking machines at main gates as campus security standards rise and parent expectations for school safety increase.
🚇 Metro Stations
All metro systems in India — Delhi Metro, Hyderabad Metro, Bangalore Metro, Chennai Metro, Mumbai Metro — operate X-ray bag scanning at all station entry points.
✈️ Airports
Commercial airports operate bag checking machines at multiple checkpoints — check-in counter screening, hand luggage security check before boarding, and cargo screening.
🏛️ Government Buildings
Secretariats, legislative assembly buildings, collectorate offices, PSU headquarters, income tax offices, and other government facilities deploy bag scanners at public entry points.
🎪 Events and Exhibitions
Large public events — trade exhibitions, political rallies, sports events, concerts, religious congregations — deploy portable bag scanning at entry gates as a security measure.
Bag Checking Machine vs Metal Detector — What is the Difference?
Many people confuse bag checking machines with metal detectors. They are completely different devices that work together at entry security checkpoints.
| Feature | Bag Checking Machine (X-Ray) | Metal Detector (DFMD) |
|---|---|---|
| What it screens | The bag and its contents | The person walking through |
| Technology | X-ray radiation | Electromagnetic induction |
| What it detects | Everything inside the bag | Metal objects on the body |
| Non-metal detection | Yes — organic, plastic, liquids | No — metal only |
| How used | Bag placed on conveyor belt | Person walks through the frame |
| Speed | 1–2 seconds per bag | 1–2 seconds per person |
At any properly secured entry point, both are used together:
- Your bag goes through the X-ray bag checking machine
- You walk through the door frame metal detector (DFMD)
- If either alerts, the guard uses a handheld metal detector (HHMD) for secondary screening
Raise Solutions supplies all three devices as a complete integrated entry security system.
What Can and Cannot a Bag Checking Machine Detect?
✅ What It CAN Detect
- Firearms — guns, pistols, revolvers appear as clear dark blue shapes
- Edged weapons — knives, blades, scissors show as thin blue or green outlines
- Explosive devices — IEDs, detonators show a characteristic organic plus metal pattern
- Narcotics and drugs — appear as orange organic masses with characteristic density
- Prohibited electronics — jammers, hidden cameras, modified devices
- Sharp tools — screwdrivers, chisels, drills
- Suspicious organic masses — large quantities of unknown organic material
- Wiring and batteries — associated with explosive devices
❌ What It CANNOT Detect
- Non-metallic, non-organic threats — very rare in practice
- Liquid explosives in very small quantities hidden in regular beverage containers
- Objects engineered specifically to mimic benign items in both shape and density
- Items concealed inside very dense overlapping objects (black areas)
This is why trained operators, manual inspection, and supplementary devices (HHMD, ETD — Explosive Trace Detection) are always used alongside bag checking machines at high-security checkpoints.
Key Specifications to Compare Before Buying
Tunnel Size (Opening Dimensions)
The most practical specification. The tunnel must be large enough to fit the largest bag or item you expect to screen. Standard sizes for hotel and office use: 600mm × 400mm. For airports and large luggage: 800mm × 600mm. Measure your largest expected item before specifying.
Single Energy vs Dual Energy
Single energy produces greyscale images. Dual energy produces the colour-coded orange/blue/green images. For any serious security deployment, always specify dual-energy. The colour differentiation is what allows operators to distinguish threats from harmless items of similar shape.
Conveyor Speed
How fast the belt moves the bag through the tunnel. Faster speed = more bags per hour but requires more alert operators. Adjustable speed is preferable — slower for complex bags, faster during low-risk periods.
Image Resolution
Measured by the smallest wire the machine can detect (AWG — American Wire Gauge). Higher resolution (lower AWG number) = sharper, more detailed image = better chance of detecting small hidden objects. Standard security-grade resolution: 36–40 AWG.
X-Ray Penetration
How thick a steel sheet the X-ray can see through. Standard: 30–34mm steel penetration. Higher penetration means denser objects can be clearly imaged rather than appearing as black masses.
Automatic Threat Detection (ATD)
Software that automatically highlights shapes or densities matching known threat profiles — guns, knives, specific electronic devices. ATD assists the operator rather than replacing them. Reduces operator fatigue and catches items that might be visually missed in a busy screening environment.
False Colour Inverter and Image Enhancement Tools
Good operators use image processing tools — high/low penetration views, colour inverter, zoom — to analyse suspicious areas more closely. Confirm these tools are included in the software.
Radiation Safety Certification
The machine must meet AERB (Atomic Energy Regulatory Board) requirements for India. Confirm the device carries the appropriate radiation safety certifications for the Indian market.
Bag Checking Machine Price in India — 2026
| Category | Price Range | Best For |
|---|---|---|
| Compact / Desktop (small tunnel) | ₹2,00,000 – ₹3,50,000 | Small offices, shops, clinics |
| Standard Single-Energy | ₹3,50,000 – ₹5,00,000 | Hotels, schools, small courts |
| Standard Dual-Energy | ₹4,50,000 – ₹7,50,000 | Malls, corporate offices, hospitals |
| Premium Dual-Energy | ₹7,50,000 – ₹12,00,000 | High courts, government buildings |
| Large Tunnel / Cargo | ₹15,00,000 – ₹40,00,000+ | Airports, customs, logistics |
| Portable / Mobile | ₹4,00,000 – ₹8,00,000 | Events, temporary checkpoints |
⚠️ Prices are for the machine unit only. Installation, operator training, power supply connection, AMC, and accessories are additional. Always request an all-inclusive quote.
What affects the price:
- Tunnel size — larger tunnels cost significantly more
- Dual-energy vs single-energy — dual costs 20–40% more but is essential for quality screening
- Image resolution — higher resolution costs more
- Automatic threat detection software — adds cost but reduces operator dependency
- Brand origin — European brands (Smiths, Rapiscan) cost more than Asian brands
- Warranty terms — 3-year on-site service costs more than 1-year carry-in warranty
How to Choose the Right Bag Checking Machine for Your Premises
Step 1 — Estimate Your Daily Footfall
How many bags do you expect to screen per day? A hotel lobby screening 500 bags/day has very different requirements from a corporate office screening 50 bags/day. Higher footfall needs faster conveyor speed, more durable construction, and better operator ergonomics.
Step 2 — Measure Your Largest Expected Bag
The machine’s tunnel must accommodate the largest item you plan to screen. If overseas guests with large suitcases use your hotel entrance, you need an 800mm × 600mm tunnel. If it’s only hand bags and laptop bags, a 600mm × 400mm tunnel is sufficient.
Step 3 — Decide on Image Quality
For serious security — always dual-energy. For a private school or small clinic where screening is more about deterrence than detection — single-energy may be acceptable and cheaper.
Step 4 — Consider Your Operator
A bag checking machine is only as good as the person watching the screen. Factor in operator training into your purchase decision. Raise Solutions includes operator training with every installation.
Step 5 — Plan for the Full System
A bag checking machine is one part of an entry security system. Plan simultaneously for the door frame metal detector (DFMD) and handheld metal detector (HHMD) — both of which screen the person rather than the bag. Buying all three from one supplier simplifies installation and AMC.
Installation — What to Expect
Site Assessment (Free)
Our engineer visits your entry point to assess available space, power supply, operator positioning, and integration with your existing security setup.
Positioning and Civil Work
The machine is positioned at the entry point with adequate space on both sides for the conveyor extension (typically 60–80cm on each side of the tunnel). Power connection is established with proper earthing.
Software Configuration
Sensitivity settings, image enhancement tools, and automatic threat detection parameters are configured for your specific security environment and operator skill level.
Operator Training
Your security staff are trained on reading the colour-coded image, using image enhancement tools, identifying suspicious shapes and densities, and calling for manual inspection appropriately. This is the most important step — an untrained operator makes even the best machine useless.
Handover
Documentation, radiation safety certificate, warranty card, and AMC options are provided.
🔧 Raise Solutions completes standard bag checking machine installations in 4 to 8 hours including positioning, power connection, software configuration, and operator training.
Frequently Asked Questions
The technical name is X-ray baggage scanner or X-ray security screening system. It is also called a baggage X-ray machine, luggage scanner, or parcel scanner. In everyday Indian usage, “bag checking machine” and “bag scanner machine” are the most common terms
Why Choose Raise Solutions for Your Bag Checking Machine?
We are not a product marketplace. We are a security systems company with 12+ years of deployment experience across Andhra Pradesh — and we bring that real-world experience to every bag checking machine installation.
When you buy from Raise Solutions, you get a machine that is correctly calibrated for your specific environment and traffic profile, operators who are properly trained, and a local team in Vijayawada that responds quickly when something needs attention.
- ✅ Genuine products — full manufacturer warranty, proper GST invoice
- ✅ Free site assessment — right tunnel size and model for your entry point
- ✅ Complete system supply — bag checking machine + DFMD + HHMD + CCTV integration
- ✅ Expert installation and calibration — not just plug-in-and-leave
- ✅ Operator training included in every installation
- ✅ AMC available — scheduled maintenance, priority breakdown response
- ✅ ISO Certified | MSME Registered | NSIC Recognised
- ✅ Local presence in Vijayawada — fast on-site response across AP
📞 Get Specifications and Pricing Today
Call: +91 8522959096
Email: info@raisesolutions.in
Website: raisesolutions.in
Visit: Nidamanuru Road, Poranki, Vijayawada, Andhra Pradesh – 521137
Tell us your premises type, expected daily footfall, and largest bag size — we will recommend the right bag checking machine with full all-inclusive pricing within 24 hours.
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