Dual Cartridge Gun

Reliable, controlled dispensing for two part adhesives with fixed mixing ratios

As a specialized manufacturer of dispensing solutions, Btektech offers dual cartridge guns that ensure dead-on volumetric ratios and synchronized flow, commonly used for 2 part epoxy applications. With manual, pneumatic, and battery-powered options available, including compact 50ml epoxy gun and larger industrial sizes.

Product Advantages & Technical Features

The primary role of a Dual Cartridge Gun is to eliminate “lead-lag”—that frustrating moment when the plungers advance at different speeds, leading to off-ratio mixing and curing failures.

Fixed Mechanical Synchronization: Our plungers are mechanically linked to locks in a fixed volumetric ratio so that they move in unison.
Power to Match Your Workload: We offer manual, pneumatic, and battery-powered versions to fit your specific needs.
Universal Compatibility: You’re never locked into a proprietary system, our dispensing guns to fit industry-standard dual cartridges, coaxial cartridges and static mixing nozzles.
Flow Control: Minimize material waste with our high-response cut-off system. It limits post-trigger “ooze,” providing a cleaner finish.

How to Choose the Right Dual Cartridge Gun

Choosing the right gun isn't just about the price—it's a technical decision that impacts your bond strength and project timeline, especially when selecting a 2 part epoxy gun for structural or electronic applications. At Btektech, we suggest our customers evaluate these four critical factors:

Mind the Mixing Ratio: Your dispensing gun must mechanically lock into the adhesive’s ratio (1:1, 2:1, etc.). If there’s even a slight mismatch, you’ll face incomplete curing, reduced bond strength, or soft spots that compromise the entire bond.
Match Capacity to Your Workflow: From small 50ml epoxy cartridge systems to liter-class industrial setups, it should be matched with the size of the cartridge and the dispensing frequency to balance productivity, handling effort, and material waste.
Viscosity & Push-Force: High-viscosity adhesives such as epoxy resins need serious “grunt.” Using a weak dual cartridge gun for thick paste leads to uneven flow and hand strain, ultimately affect the dispensing results.
Selecting the Right Power Source: Manual guns are ideal for low-volume, mobile, or intermittent tasks. For high-frequency production, we recommend pneumatic or battery-powered options; they deliver constant thrust that removes operator variables.

Product Models & Technical Specifications

Below is a selection of our most popular Dual Cartridge Gun models. As a leading manufacturer, Btektech offers an extensive range of specifications and configurations beyond what is listed here. For a comprehensive overview of all our dispensing consumables, please contact us or download the product catalog.

Manual Dual Cartridge Gun (50–75ml Cartridges)

Item No.	Ratio	Color	Material
Item No.	Ratio	Color	Body	Plungers
FT50-11	1:1	Offwhite	PP+PA	Metal
FT50-12	2:1	Offwhite	PP+PA	Metal
FT50-14	1:4	Offwhite	PP+PA	Metal
FT50-101	10:1	Offwhite	PP+PA	Metal
FT75-101	10:1	Offwhite	PP+PA	Metal

Manual Dual Cartridge Gun (200–600ml Cartridges)

Item No.	Ratio	Color	Material	Driving force
BTK200-11	1:1	Blue+ black	Nylon alloy	600Kgs
BTK200-21	2:1	Blue+ black	Nylon alloy	600Kgs
BTK250-101	10:1	Blue+ black	Nylon alloy	600Kgs
BTK360-51	5:1	Blue+ black	Nylon alloy	600Kgs
BTK375-41	4:1	Blue+ black	Nylon alloy	600Kgs
BTK380-101	10:1	Blue+ black	Nylon alloy	600Kgs
BTK385-31	3:1	Blue+ black	Nylon alloy	600Kgs
BTK390-31	3:1	Blue+ black	Nylon alloy	600Kgs
BTK400-11	1:1	Blue+ black	Nylon alloy	600Kgs
BTK400-21	2:1	Blue+ black	Nylon alloy	600Kgs
BTK450-21	2:1	Blue+ black	Nylon alloy	600Kgs
BTK490-101	10:1	Blue+ black	Nylon alloy	600Kgs
BTK585-31	3:1	Blue+ black	Nylon alloy	600Kgs
BTK600-11	1:1	Blue+ black	Nylon alloy	600Kgs

Battery-powered Dual Cartridge Gun

Item No.	Spec.	Color	Material
EGG400-11	EGG400-11	blue	metal+Plastic
BTK-EG02	BTK-EG200ml(1:1)	yellow	metal+Plastic
BTK-EG03	BTK-EG400(3: 1)	yellow	metal+Plastic
BTK-EG04	BTK-EG585(3: 1)	yellow	metal+Plastic

Pneumatic Dual Cartridge Gun

Item No.	Spec.	Color	Material
BTK-AG01	AG400ml (1:1)	black	metal+Plastic
BTK-AG02	AG600ml (1:1)	black	metal+Plastic
BTK-AG03	AG490ml (10:1)	black	metal+Plastic
BTK-AG04	AG1500ml (1:1)	blue+black	metal+Plastic

How Btektech Dual Cartridge Systems Work

Operating a dual cartridge system is about mastering synchronized displacement. At its core, when you engage the actuator, our linked dual-plunger system drives Part A and Part B into the static mixing nozzle at a perfectly matched pace.

Inside that nozzle, the material undergoes a series of “divide and recombine” cycles. These internal elements are the secret to a truly homogenous mix, ensuring no “soft spots” in your final bond. Because our plungers are mechanically locked, the volumetric ratio remains constant—even if you are working with components of vastly different viscosities. For the best flow stability, we recommend matching your dispensing force to the specific back-pressure of your adhesive and nozzle geometry.

Product Applications & Industries

Dual Cartridge Guns deliver precise, portable dispensing where automated lines are impractical due to budget, space, or workflow constraints. They are widely adopted as epoxy applicators across multiple industrial sectors.

Structural Bonding & Assembly

Composite & Panel Bonding: Our guns are engineered to maintain mechanical properties across the entire bond line, significantly reducing the risk of localized failures.
Metal Fabrication & Frames: Replacing rivets or welds with structural adhesives requires high confidence in joint integrity. These dispensers support the uniform curing needed for predictable load-bearing strength.
Industrial Sealing: The controlled leverage allows operators to navigate complex geometries while minimizing the messy “over-travel” and material waste common in lower-quality tools.

Electronics & Encapsulation

High-Precision PCB Potting: Dual cartridge systems support “void-free” encapsulation, this is the preferred method for protecting delicate circuit boards from thermal shock and vibration in pilot runs or low-to-medium volume production.
Connector Stabilization: The synchronized plungers ensure that even fast-setting epoxies reach a homogenous mix before they hit the substrate, preventing “soft spots” in the cure.
Thermal Interface Material (TIM) Application: Consistent ratio dispensing promotes efficient heat transfer and eliminates the air gaps that often lead to premature component failure.

Maintenance, Infrastructure & Validation

Field-Ready Repairs: From equipment refurbishing to emergency structural fixes, our manual and battery-powered guns are built for the heavy-duty rigors of on-site industrial work.
Infrastructure & Structural Retrofitting: These tools are ideal for critical tasks like chemical anchoring and reinforcement in remote locations. They provide the necessary thrust to drive high-strength resins into deep substrates.
Process Qualification & Prototyping: Before scaling to expensive automated systems, use these guns to evaluate adhesive rheology and bond strength. It’s the most cost-effective way to validate your dispensing parameters during the pilot phase.

Need a Custom Solution? We’ve Got You Covered.

At Btektech, we engineer custom solutions for all products related to adhesives and fluid dispensing.

Our Customization Options Include:

Physical Attributes: Size, material, and color
Branding: Custom packaging and logo application
Functional Design: Modifications based on requirements

To get started, simply share your basic drawings, functional specifications, or intended usage scenarios. Our engineering team will assess feasibility and collaborate with you to develop a high-performance, reliable solution.

Partner with Btektech for Precision

From initial design to final delivery, we ensure your custom solution achieves unmatched consistency. If you have a customization need, contact us today to discuss your project.

Frequently Asked Questions (FAQ)

How do I select a dual cartridge gun based on mixing ratios and cartridge volume requirements?

You must match the gun’s fixed drive ratio and frame size to your cartridge because these tools are not mechanically adjustable in the field. Selection starts with identifying your adhesive’s packaging—common industrial formats include 50ml, 200ml, and 400ml side-by-side cartridges. Using mismatched ratios will cause catastrophic seal failure and chemical off-ratio issues.

Can a manual dual cartridge gun handle high-viscosity epoxy resins?

manual dual cartridge gun can handle high-viscosity epoxy glue only if it provides sufficient thrust, typically through a high-leverage ratio (e.g., 18:1 or 26:1). Using a standard manual gun may make it difficult to dispense the glue smoothly. For very thick or highly filled adhesives, a higher-ratio manual gun or a pneumatic/electric gun ensures consistent flow and accurate mixing. Btektech can help you evaluate your glue properties and recommend the most suitable dispensing solution.

Are dual cartridge guns suitable for continuous, high-volume industrial production lines?

Dual Cartridge Guns are primarily engineered for low-to-medium volume assembly, intermittent maintenance, or flexible batch processing rather than continuous high-speed automation. If your process requires uninterrupted dispensing, we recommend transitioning to bulk metering and mixing systems. However, for prototyping or pilot runs, the Dual Cartridge Gun remains the most cost-effective method to validate adhesive performance.

What technical specifications are critical to verify when matching dual cartridges with static mixing nozzles?

Successful dispensing relies on matching three physical variables: the outlet interface, the volumetric ratio, and the mixer’s internal pressure rating. You must ensure the gun’s plunger plates are perfectly aligned with the cartridge’s rear flange to avoid "ballooning," which is the leading cause of ratio drift. If the static mixer is too narrow or too long for the material's viscosity, back-pressure will spike, causing the seals to blow or the material to bypass the internal elements.

How does sourcing directly from a manufacturer impact long-term supply stability and tool customization?

Sourcing directly from a manufacturer like Btektech ensures tighter control over mechanical tolerances and provides a reliable path for long-term spare part availability. For procurement teams, this eliminates the risk of "orphaned" equipment that happens when third-party resellers drop a product line without warning. From an R&D standpoint, working with the factory allows you to request custom drive ratios or modified frames for non-standard cartridge formats. We provide direct engineering consultations and sample support to help you qualify the hardware during your design phase.

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