Scaling Up: Why Engineers Choose 32 Carriers for High-Density Catheter Braiding

In medical device manufacturing, neurovascular and cardiovascular catheters must navigate increasingly tortuous anatomy. For design engineers, this creates a constant battle between two opposing physical requirements: distal flexibility and proximal torque response (pushability and steerability).

While a standard 16-carrier braider is the workhorse of the industry, complex catheter geometries often require stepping up to higher braid densities. This is where the MMBT32CHFWB 32-Carrier Horizontal Fine Wire Braider becomes an essential tool on the production floor.

Why Scale Up to 32 Carriers?

Doubling the carrier count from 16 to 32 isn’t just about putting more wire on a mandrel—it is about fundamentally changing the mechanical properties of the catheter shaft.

Optimized Flexibility-to-Torque Ratios

A 32-carrier setup allows engineers to achieve extremely dense coverage (high PIC—picks per inch) using ultra-fine wires like Nitinol or 304V stainless steel. This dense matrix maximizes 1:1 torque transmission from the physician’s hand to the catheter tip, without adding the rigid stiffness that a heavier-gauge wire would introduce.

Thinner Walls, Higher Performance

By utilizing 32 strands of ultra-fine wire rather than 16 strands of thicker wire, manufacturers can maintain an incredibly thin wall profile. This leaves more room for the inner lumen, allowing for larger guidewires or contrast flow without increasing the outer diameter (OD).

Complex Hybrid Patterns

32 carriers provide the versatility to run advanced hybrid braids, mixing metallic wires (for burst pressure and torque) with synthetic fibers like Kevlar, Vectran, or Dyneema (for tensile strength).

Engineered for High-Density Precision

Running 32 carriers at high speeds introduces the risk of wire chatter, tension spikes, and scrap. The MMBT32CHFWB is specifically engineered to mitigate these risks. It features precision black carriers equipped with ceramic rollers to drastically reduce sliding friction, ensuring uniform tension across all 32 spools.

Paired with a multilingual HMI that stores 10-segment programmable recipes, engineers can seamlessly transition braid densities on the fly, creating variable-stiffness shafts in a single continuous run. And despite the high carrier count, the machine maintains an ultra-quiet 80 dB operational volume, keeping the manufacturing floor safe and focused.

See MMBT Fine-Wire Braiders in Action

Explore MMBT 32-carrier and 16-carrier horizontal models sharing our core carrier tensioning and HMI software platform:

System Walkthroughs & Demonstrations

Explore detailed technical video overviews of our horizontal fine-wire braiding platform:

In-Stock Fine-Wire Braiders