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Full Control: Understanding the BCH FSG Foot Switch with Two Contact Blocks

Walk into any busy machine shop, welding bay, or rubber processing plant and you’ll often see operators controlling equipment with their foot while both hands stay firmly on the job. That quiet but essential device underfoot is a foot switch. Among the more practical options available for industrial use is the BCH FSG series, particularly the versions fitted with two contact blocks.

What the FSG Foot Switch with Two Contact Blocks Offers

The BCH FSG range is built for demanding industrial environments rather than light or occasional use. When the switch is equipped with two contact blocks, it provides more switching capacity from a single pedal action. In practical terms, this usually means a combination of normally open (NO) and normally closed (NC) contacts working together. One press of the pedal can control multiple circuits at the same time — for example, starting a machine while also sending a signal to an interlock, indicator lamp, or PLC input.

This extra contact capacity is useful when a simple single-circuit foot switch is not enough, yet the designer still wants a purely mechanical, reliable solution without adding extra relays.

Why Two Contact Blocks Make a Difference

A basic single-block foot switch is fine for simple on/off control. Moving to two contact blocks expands the possibilities. It allows the same foot movement to handle more complex control logic without complicating the panel wiring. For machine builders and panel designers, this often means cleaner designs and fewer additional components.

Built for Real Factory Conditions

BCH designs the FSG series with durability in mind. The contact mechanism is housed in a moulded phenolic block that stands up well to heat, dust, vibration, and repeated use. These switches are suitable for both AC and DC pilot circuits, giving them flexibility across different control systems. This is why they appear regularly in tougher industrial settings rather than cleaner or lighter-duty applications.

Common Applications

You will typically find these foot switches in:

Machine tools such as lathes, presses, and drilling machines

Rubber and tyre manufacturing equipment

Special Purpose Machines (SPMs)

Welding setups where both hands are occupied

In all these cases, the operator needs reliable hands-free control while maintaining full attention on the workpiece or process.

Latch and Guard Options

Within the FSG series, different variants are available. Latch versions allow the pedal to stay locked in the pressed position for continuous operation. Guard versions add a protective cover to reduce the chance of accidental activation. Choosing the right one depends on whether the process needs momentary control or continuous engagement, and how much protection against accidental operation is required on the shop floor.

Key Points to Check Before Selecting

Confirm how many contacts your control circuit actually needs

Decide between latch and guard styles based on the machine cycle

Match the switch’s voltage and current ratings with your control circuit

Check mounting dimensions and cable entry if you are replacing an existing switch

Frequently Asked Questions

What does two contact blocks mean on a BCH FSG foot switch? It means the switch carries two separate contact blocks, typically providing a combination of normally open and normally closed contacts that operate together from one pedal press.

Can this foot switch be used for both AC and DC circuits? Yes. The FSG series is designed to handle both AC and DC pilot circuits.

Where are these foot switches commonly used? They are widely used in machine tools, rubber and tyre plants, special purpose machines, and welding applications.

What is the difference between latch and guard versions? The latch version can be locked in the pressed position for continuous operation. The guard version includes a protective cover to help prevent accidental activation.

Is the FSG series suitable for heavy-duty use? Yes. It is built with a robust phenolic contact block and is intended for industrial environments with regular mechanical stress and demanding conditions.

Final Thoughts

A foot switch may look like a simple component, but when both hands are occupied it becomes a critical part of safe and efficient machine control. The BCH FSG series with two contact blocks offers practical extra switching capacity in a durable industrial package. For anyone designing or maintaining equipment that needs reliable hands-free operation, it is worth a closer look.

Your Gearbox Just Got a Brain: Inside FLENDER ONE, the Platform Rewriting What an Industrial Gearbox Can Do

For decades, industrial gearboxes have been treated as simple mechanical components. Their job was straightforward: change speed and torque, then stay out of the way. Most of the time, nobody thinks about them — until the day one fails and brings an entire production line to a halt.

FLENDER ONE changes that approach completely. Instead of treating the gearbox as a passive box, Flender has built a platform that is smarter, more adaptable, and capable of reporting on its own condition while it runs.

What Exactly is FLENDER ONE?

FLENDER ONE is Flender’s new industrial gearbox platform that covers both single-stage and multi-stage designs. It is built on a single, flexible architecture that can be configured for more than a hundred different industrial applications.

Rather than offering completely separate product families for every industry, Flender designed one platform that can be tailored to the actual duty. This approach is called “application fit.” The goal is simple: give the customer a gearbox that matches the real operating requirement instead of forcing them to accept an oversized standard unit.

Why Application-Specific Configuration Matters

In traditional gearbox selection, engineers often choose a larger unit “just to be safe.” That extra size usually means higher cost, more weight, greater energy consumption, and unnecessary use of materials.

FLENDER ONE is designed to reduce this oversizing. By offering a high density of gear ratios and flexible configuration options, the platform allows the gearbox to be matched much more closely to the actual speed and torque demand. The result is better efficiency and lower operating cost over the life of the equipment.

Real Efficiency Improvements

Flender reports that the new platform can reduce planning time by around 25 percent, thanks to a modern configurator, ready 3D data, and faster delivery processes. On the operating side, the gearboxes are engineered for lower power losses — approximately 20 percent less than the previous generation on average.

For equipment that runs continuously for years, these energy savings become significant and directly improve the total cost of ownership.

The Real Game Changer: AIQ Intelligence

What truly sets FLENDER ONE apart is the built-in intelligence. Every new unit comes from the factory with an AIQ Core Sensor already installed. This sensor continuously monitors speed, temperature, and vibration.

Instead of waiting for a scheduled inspection or an unexpected breakdown, the system can detect developing problems early. It evaluates the condition of internal components and even helps with correct drive-train alignment during installation. This moves maintenance from a reactive approach toward a predictive one.

Key Technical Highlights

Nominal torque range: 1.9 kNm to 245 kNm

Extremely dense gear ratio network (103 ratios in the single-stage version)

Speed fit accuracy of more than 98.5 percent

METAPERFORM gearing for improved efficiency and load capacity

Optimized bearings and thermal design that reduce the need for oversizing

Industries That Benefit from FLENDER ONE

The platform is used across a wide range of applications, including:

Construction and port equipment (conveyors, hoists, mixers)

Chemical processing (agitators, pumps, aerators)

Power generation (fans, compressors, pumps)

Food and beverage production lines

Metals industry (rolling mills, conveyors, winders)

Minerals and mining (crushers, conveyors, pumps)

Water and wastewater treatment

Pulp and paper machines

It is also applied in machine tools, presses, positioning systems, and even passenger cable cars.

Design That Works as Hard as It Looks

The single-stage FLENDER ONE received an iF Design Award. The distinctive ribbed housing is not just visual — it increases surface area for better cooling, which supports the platform’s efficiency goals. Combined with Flender’s signature blue finish, the design signals a clear step forward in how industrial gearboxes are conceived.

What This Means for Specifiers and Plant Engineers

If you are selecting a gearbox for a new project or replacing an existing unit, FLENDER ONE offers a different way of thinking. Application-specific configuration and factory-fitted condition monitoring are no longer special extras. They are becoming the new standard for a well-engineered industrial gearbox.

Choosing a platform like this from the beginning can reduce unplanned downtime and lower the real cost of ownership over many years of operation.

You can explore the FLENDER ONE range and configuration possibilities through SB Smart. Sharing your required torque, ratio, and application details is the fastest way to receive an accurate proposal.

Final Thoughts