A customer looking for a continuous band sealer will usually ask:

“FR-900 lena chahiye ya FR-770?”

It sounds like a simple question, but there isn’t one answer for everyone.

The right machine depends mainly on two things:

• How many pouches you need to seal every day
• How heavy the pouches are

There are four versions to consider: FR-900 ECO, FR-900 Heavy Duty, FR-770 ECO and FR-770 Heavy Duty.

Let’s look at where each one fits.

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FR-900 vs FR-770: The Basic Difference

Both machines are continuous band sealers. The pouch is placed on the conveyor and moves through the sealing section continuously.

The main difference is their mechanical construction and intended workload.

The FR-770 is generally heavier and has a more robust gear mechanism. The FR-900 is available in lower-cost configurations, making it useful for businesses that don’t need a heavy-duty machine.

One important point is that motor wattage does not directly tell you the load capacity of the machine.

The FR-900 uses an 80 W motor, while the FR-770 uses a 50 W motor in the versions discussed here.

That does not mean the FR-900 can handle heavier pouches.

Load capacity also depends on the gears, shafts, bearings, conveyor and other mechanical parts.

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The Four Versions at a Glance

Model	Daily Production	Maximum Pouch Load	Conveyor
FR-900 ECO	Up to 1,500/day	Up to 1 kg	Rubber V-belt
FR-900 Heavy Duty	Up to 3,500/day	Up to 3 kg	Metal chain
FR-770 ECO	Up to 1,500/day	Up to 3 kg	Metal chain
FR-770 Heavy Duty	4,000+/day	Up to 5 kg	Metal chain

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FR-900 ECO: For Smaller Production

Imagine a new business producing around 500–1,500 pouches a day, with each pouch weighing less than 1 kg.

The FR-900 ECO is designed for this type of application.

It uses a rubber V-belt conveyor and is intended for pouch loads up to approximately 1 kg.

It makes sense when the customer wants a lower-cost machine and doesn’t need a heavy conveyor system.

Suitable for:

• New businesses
• Up to 1,500 pouches/day
• Pouches up to 1 kg
• Light-duty applications

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FR-770 ECO: When the Pouch Is Heavy

Now consider a business producing only 1,000 pouches per day, but each pouch weighs 2–3 kg.

The production volume is low, but the pouch is heavier.

This is where the FR-770 ECO makes more sense.

It is designed for up to approximately 1,500 pouches/day and pouch loads up to 3 kg.

It uses a metal-chain conveyor.

So, “ECO” does not necessarily mean light pouch. In this case, it means lower production capacity compared with the Heavy Duty version.

Suitable for:

• Up to 1,500 pouches/day
• Pouches up to 3 kg
• Lower production with heavier pouches

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FR-900 Heavy Duty: For Medium Production

If production increases to around 1,500–3,500 pouches per day, the FR-900 Heavy Duty is the more suitable option.

It can handle pouch loads up to approximately 3 kg and uses a metal-chain conveyor.

Compared with the FR-900 ECO, the Heavy Duty version is designed for higher production and heavier conveyor loading.

Suitable for:

• 1,500–3,500 pouches/day
• Pouches up to 3 kg
• Regular production

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FR-770 Heavy Duty: For Higher Production

Now consider a business producing 4,000 or more pouches every day, with some pouches weighing up to 5 kg.

This is where the FR-770 Heavy Duty fits.

It has a metal-chain conveyor and heavier mechanical construction. It is designed for higher production and pouch loads up to approximately 5 kg.

Suitable for:

• 4,000+ pouches/day
• Pouches up to 5 kg
• Higher production
• More demanding continuous operation

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FR-900 vs FR-770: Which One Should You Buy?

The easiest way to decide is to start with daily production and pouch weight.

Your Requirement	Recommended Machine
Up to 1,500/day + pouch up to 1 kg	FR-900 ECO
Up to 1,500/day + pouch up to 3 kg	FR-770 ECO
1,500–3,500/day + pouch up to 3 kg	FR-900 Heavy Duty
4,000+/day + pouch up to 5 kg	FR-770 Heavy Duty

Buyer-friendly decision

Producing less than 1,500 light pouches?
→ FR-900 ECO

Producing less than 1,500 but using heavier pouches?
→ FR-770 ECO

Producing 1,500–3,500 pouches?
→ FR-900 Heavy Duty

Producing 4,000+ pouches or using pouches up to 5 kg?
→ FR-770 Heavy Duty

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Show: A simple visual flowchart:

Daily Production → Pouch Weight → Recommended Machine

Example:

≤1,500/day → ≤1 kg → FR-900 ECO

≤1,500/day → ≤3 kg → FR-770 ECO

1,500–3,500/day → ≤3 kg → FR-900 Heavy Duty

4,000+/day → ≤5 kg → FR-770 Heavy Duty

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What About the Teflon Belt?

There is also a small difference in Teflon belt length:

• FR-770: 770 mm
• FR-900: 750 mm

The 20 mm difference is not normally the main factor when choosing between the machines.

Production requirement, pouch weight and mechanical construction are more important.

Read to know how to prevent ink cartridges from drying in a thermal inkjet coding machine.

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Final Answer: FR-900 or FR-770?

There is no single winner.

The right machine depends on what you are sealing.

For a new business producing 500–1,500 light pouches per day, the FR-900 ECO is a practical choice.

If production is similar but the pouches are heavier, the FR-770 ECO is more suitable.

For 1,500–3,500 pouches per day, the FR-900 Heavy Duty is the appropriate option.

For 4,000+ pouches per day or pouches up to 5 kg, the FR-770 Heavy Duty is the better fit.

So before choosing a band sealer, don’t look at the model number or motor wattage alone.

Just start with two questions:

How many pouches do you seal per day?

What is the weight of your heaviest pouch?

Those two answers will usually tell you which machine you need.