6 Best Clay Extruders For Coiled Pottery Worth Owning
Elevate your coiled pottery projects with the 6 best clay extruders on the market. Read our expert guide to find the perfect tool for your studio today.
Coiled pottery relies on the consistency of the clay strands, much like the uniformity of a hand-spun yarn depends on consistent fiber draft. Just as a knitter demands a smooth transition from a wool roving to a stable yarn, a ceramicist needs an extruder that produces seamless, structural coils. Without the right tension and pressure, the structural integrity of the vessel—like the gauge of a sweater—simply falls apart. Selecting an extruder is about finding the balance between mechanical leverage and the physical limits of the material.
Bailey Standard 4” Extruder: Best Overall Choice
The Bailey 4″ is the gold standard for studio environments where production volume mirrors a busy knitwear designer’s output. Its robust construction handles heavy, dense clay bodies with the same reliability as a set of high-quality stainless steel knitting needles handling heavy-gauge alpaca yarn.
The sheer size of the barrel allows for significant production without constant reloading. This minimizes the risk of air pockets, which serve as the “knots” or “slubs” of the ceramic world, potentially ruining the vessel walls during the building process.
For those dedicated to large-scale coil building, this tool offers the best return on investment. While it requires a dedicated wall space, the consistency it provides is unmatched for professional-grade results.
Scott Creek Super Duper Clay Gun: Best Handheld
Handheld extruders are the equivalent of a handy set of double-pointed needles—essential for small, detailed additions where full-sized equipment is overkill. The Scott Creek Super Duper is designed for makers who prioritize portability and ease of handling.
Its leverage system allows for a smooth, steady push, preventing the “hand fatigue” often felt during long sessions of repetitive cable knitting. It manages medium-stiffness clay with ease, making it perfect for adding handles or decorative elements to a bowl.
If the workspace is limited or if the project involves frequent color-changes in clay—much like transitioning between yarn colors in intarsia—this tool is the most adaptable companion. It is simple to clean and quick to store.
Shimpo EX-115 Extruder: The Pro-Level Powerhouse
The Shimpo EX-115 is engineered for the maker who treats ceramic art with the precision of a master lace knitter. This unit is built to withstand heavy, daily use, providing the high-torque mechanical advantage necessary for very stiff, high-fire clay bodies.
Its design focuses on structural stability, eliminating the wobble that can introduce inconsistencies in coil diameter. When working with fine details, that stability is as crucial as maintaining tension while knitting on tiny 1.5mm needles.
While the price point is higher, the performance longevity justifies the cost. It is an investment for the artist who has moved past beginner projects and needs professional precision to execute intricate designs.
North Star Standard Extruder: A Solid Workhorse
North Star extruders are widely respected for their modularity and extensive library of available dies. Think of this tool as a set of interchangeable circular needles; once the base system is purchased, the variety of tips available allows for endless creative possibilities.
The wall-mounted bracket is incredibly durable, engineered to handle the strain of thick extrusions without bending or twisting. This reliability ensures that the clay flow remains vertical and even, much like maintaining perfect stitch definition over hundreds of rows of stockinette.
Maintenance is straightforward, which is ideal for communal studios or hobbyists who prefer building to tinkering with tools. It is a workhorse that consistently performs under pressure.
Kemper Klay Gun: The Best Budget Handheld Pick
The Kemper Klay Gun is the entry-level standard, ideal for beginners who are just starting to experiment with coil techniques. It functions effectively for smaller, softer clay extrusions, providing a straightforward experience similar to working with acrylic or bamboo needles for a first project.
While it lacks the heavy-duty mechanical leverage of larger systems, it is perfect for fine detailing. For makers adding small embellishments or textures, this tool is easy to operate and exceptionally affordable.
It serves as a low-risk gateway into extrusion. If the goal is small-scale sculpture or delicate surface design, this tool will more than suffice for years to come.
Makin’s Professional Extruder: For Small-Scale Jobs
Makin’s extruder is often utilized for extremely delicate work, particularly when using softer, refined clay bodies. Its design is compact, mirroring the utility of specialized tools for sock knitting or fine-gauge fiber arts.
This tool excels when detail is paramount and volume is secondary. It is surprisingly effective for intricate patterns or miniature coil work where larger extruders would be cumbersome and imprecise.
It remains a specialized choice for the detail-oriented ceramicist. Use it for finishes and surface applications where nuance is more important than raw power.
Wall-Mounted vs. Handheld: Which Extruder Is Best?
Choosing between wall-mounted and handheld extruders is similar to choosing between a loom and a pair of knitting needles. Wall-mounted units are designed for structural integrity and high-volume production, while handheld models offer the agility required for free-form artistic expression.
If the goal is to build large vases or structural baskets, wall-mounted leverage is necessary. Handheld options, conversely, are best suited for adding handles, sprigs, or decorative coils directly onto a leather-hard pot.
Assess the primary building style before purchasing. Over-investing in a wall unit for small details is as impractical as buying a floor loom for a simple scarf.
How to Choose the Right Die for Your Coil Project
The die is the heart of the extrusion, acting exactly like a needle size in knitting; it dictates the final thickness and shape of the work. A smaller die produces delicate, fine coils, while a larger die is necessary for structural supports.
Always consider the clay’s “memory” or spring-back. Much like how wool stretches more than cotton, certain clay bodies will swell slightly upon exiting the die.
Experiment with different die shapes—hollow tubes, squares, and ribbons—to understand how they behave under pressure. Matching the die to the clay body is the key to preventing cracks during the drying process.
Extruder Maintenance: Keeping Your Tool Clog-Free
Clay left to dry inside an extruder is the ultimate ruin, comparable to leaving a delicate fiber project exposed to moths. Regular maintenance is the only way to ensure the tool remains functional and the coils remain smooth.
Clean the barrel and the die immediately after use. Even a small amount of dried clay inside the cylinder can create a “drag” that will cause inconsistent, wavy coils during the next session.
Periodically lubricate moving parts according to the manufacturer’s instructions. A well-maintained extruder will offer the same smooth, predictable performance year after year.
Can You Use Polymer Clay in a Pottery Extruder?
While it is physically possible to push polymer clay through a standard pottery extruder, it is generally ill-advised. Polymer clay is significantly denser and stickier than ceramic clay, which can overwhelm the mechanical components of many metal extruders.
Residual oils and plasticizers from polymer clay can also contaminate the pores of subsequent ceramic clay, leading to firing failures. These are essentially incompatible media.
Keep dedicated tools for each material, just as you would avoid using the same needle for rough wool and fine silk if you wanted to keep the fibers pristine. Specialized tools deserve specialized use to ensure the longevity of your gear.
The path to mastery in coiled pottery, much like in knitting, is paved with the right tools used with intent and care. By selecting an extruder that matches the scale and ambition of the work, the foundation for every vessel becomes as strong as the stitches in a well-constructed garment.
