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Tension Sensors

Tension sensors measure the force applied by moving web materials and provide feedback to the tension control system. The series covers seated, through-shaft and cantilever structures for different machine layouts and roller configurations.

Key Selling Points

Full-bridge strain-gauge sensing for precise tension measurement.
Temperature compensation for stable signal output.
Overload protection for sensor safety.
Model family covers LS200, LS300, LS400, LS500 and LS600.
Supports web tension feedback in printing, coating, laminating, slitting and rewinding equipment.

Typical Applications

Printing, coating, laminating, slitting and rewinding machines
Closed-loop tension control systems
Roller-based web handling equipment

LS200 Parameters

Item	Parameter
Accuracy grade	0.1
Sensitivity	2 mV/V
Combined error	+/-0.5%
Specific value tolerance	+/-0.5%
Measuring principle	Strain full bridge
Bridge resistance	350 Ohm
Bridge power supply	5V
Mechanical stop	1.2 x FN
Workload	1.2 x FN
Ultimate load	10 x FN
Target measurement stroke	0.2-0.3 mm, depending on type
Operating temperature	+5 C to +55 C
Protection grade	IP54
Weight	0.7 kg
Measuring ranges	5 kg, 10 kg, 30 kg, 50 kg, 100 kg, 200 kg

LS300 Parameters

Item	Parameter
Precision grade	0.5
Sensitivity	2 mV/V
Combined error	+/-0.5%
Specific value tolerance	< +/-0.2%
Measuring principle	Strain full bridge
Bridge resistance	350 Ohm
Bridge power supply	5V
Mechanical stop	1.2 x FN
Workload	1.2 x FN
Ultimate load	10 x FN
Target measurement stroke	0.2-0.3 mm, depending on type
Operating temperature	+5 C to +55 C
Protection grade	IP54
Weight	0.7 kg
Measuring ranges	30 kg, 50 kg, 100 kg, 200 kg and above

LS400 / LS500 Parameters

Item	LS400	LS500
Accuracy grade	0.1	0.1
Sensitivity	2 mV/V	2 mV/V
Combined error	<1%	<1%
Measuring principle	Strain gauge full bridge	Strain gauge full bridge
Bridge resistance	350 Ohm	350 Ohm
Bridge power supply	5V	5V
Mechanical stop	1.2-1.8 x FN	1.2-1.8 x FN
Workload	1.2-1.8 x FN	1.2-1.8 x FN
Ultimate load	10 x FN	10 x FN
Target measurement stroke	0.15-0.25 mm	0.15-0.25 mm
Temperature range	+5 C to +55 C	+5 C to +55 C
Protection grade	IP45	IP54
Weight	1.735 kg	1.735 kg
Shaft diameter	17 mm / 25 mm

LS600 Roller Options

Roller diameter	Min. NB	Max. NB	Rated measuring force per roller
60 mm	150 mm	300 mm	50 / 100 / 200 N
80 mm	200 mm	400 mm	100 / 200 / 400 N
100 mm	250 mm	500 mm	100 / 200 / 400 N

LS600 Surface Options

Surface index	Surface
01	Polishing Ra 3.2, standard
02	Encased in rubber cork
03	Fine sandblasted with glass emery, Ra 6.3, hard anodized layer, 30 um, 450 HV
04	Hard anodic oxide layer, Ra 3.2, 30 um, 450 HV

Tell Us About Your Application

Every production line is different. To recommend a suitable system, we need to understand your material, web width, line speed, machine layout, quality-control target and required functions.

Send us your project details, machine photos or sample defects. Our team will review your application and help you choose a practical solution for print inspection, web guiding, tension control or in-line measurement.

Request a Quote

Order Process

1️⃣ Share Your Application
Tell us your material type, web width, line speed, machine layout and quality-control requirements.

2️⃣ Review the Solution
We review the application and recommend a suitable direction for print inspection, web guiding, tension control or in-line measurement.

3️⃣ Confirm Configuration
We confirm the model, functions, installation conditions, technical details and quotation before the project moves forward.

4️⃣ Delivery & Follow-Up
We coordinate delivery, technical communication and after-sales follow-up for your project.

Clear. Practical. Reliable.

Frequently Asked Questions

Are you a factory?

Bainary is an independent technology and international trade company. We support overseas customers through application review, model selection, export coordination, and long-term project follow-up, backed by selected Chinese manufacturing resources.

What information should I send before asking for a quotation?

Please send material type, web width, line speed, machine type, installation position, defect type, sample photos or videos, required inspection target and available space. If the project is about web guiding or tension control, photos of the current machine section are also useful.

Can one inspection system work for all materials?

No. Transparent film, printed labels, paper, foil and nonwoven materials may need different cameras, lighting, sensors or installation positions. A short technical check before quotation reduces the chance of selecting the wrong system.

What is the difference between web inspection and 100% print inspection?

A web inspection system helps operators observe high-speed printed images more clearly. A 100% print inspection system automatically checks the full web and records defects with software. The right choice depends on defect type, speed, width and required quality control level.

Why do web guiding and tension control matter for inspection?

If the web moves sideways, wrinkles or tension changes heavily, the camera may not see the same print area consistently. Stable guiding and tension often make inspection more reliable.

Can Bainary help with non-standard inspection cases?

Yes. For uncertain cases, Bainary can collect samples, videos and defect descriptions first, then coordinate feasibility evaluation before formal quotation.

Which applications are suitable?

Flexible packaging, labels, paper converting, film and foil converting, nonwoven production, coating, lamination, slitting, rewinding, printing and bag-making lines are typical applications.

What happens after inquiry?

Bainary first checks the application information. If the requirement is clear, we recommend a product direction and quotation path. If not, we ask for missing line parameters, sample images or videos before pushing the project forward.