Recently, Dezhou Drillstar officially launched its comprehensive product lineup of CNC deep-hole drilling machines utilizing gun-drilling technology. This portfolio establishes a full-series system comprising standard models, multi-axis special-purpose machines, and heavy-duty hybrid machines (supporting both gun-drilling and BTA processes). Leveraging modular architecture, high-precision rigid design, and multi-functional hybrid machining capabilities, these machines are fully suited for precision deep-hole processing across sectors such as automotive components, hydraulic molds, coal mining machinery, large hydraulic cylinders, and military-grade shafts. This move solidifies the company’s leadership in the domestic high-end deep-hole machine tool market, enabling comprehensive coverage for diverse specifications, operating conditions, production volumes, and workpiece sizes—including ultra-large components.
I. Standard Models: Two Core Lines (Single-Axis and Three-Axis) for General-Purpose Deep-Hole Machining
The newly released standard products feature two main lines: the ZK21 series (single-axis) and the ZKF21 series (three-axis) CNC deep-hole drilling machines. Characterized by mature structural design, a compact footprint, and ease of maintenance, these machines serve as the primary equipment for general-purpose deep-hole machining in component manufacturing enterprises.
(i) ZK2102 Single-Axis CNC Deep-Hole Drilling Machine
The ZK2102 is designed primarily for the high-precision machining of single holes in small shafts and simple rotational parts. It covers drilling diameter ranges of 3–20mm, 4–30mm, and 10–40mm, with selectable drilling depths ranging from 500mm to 3000mm. It is widely used for machining workpieces requiring high straightness, such as fuel pump nozzles, valve plates, gun barrels, small automotive shafts, and pistons.
The equipment incorporates multiple structural optimizations to enhance performance: the machine utilizes an integrated three-panel sliding guard design, effectively eliminating issues with oil leakage and exposed wiring; the compact body reduces the footprint by one-third compared to traditional models (dimensions are 3500×3200mm for the ZK2102F and 4050×4050mm for the ZK2102A); and the machine bed is available in two configurations—high-strength cast iron and welded steel. The cast iron version offers superior rigidity and long-lasting precision, while the welded version provides shorter delivery times and lower procurement costs. The auxiliary equipment utilizes a universal TBT standard structure, ensuring easy accessory replacement and cost-effective spare parts; the cooling system has undergone miniaturization, reducing the oil tank capacity from 1000L to 600L while featuring a 3-stage/5-stage dual-filtration setup for stable, efficient cooling and chip removal. Actual photos of the machine highlight three core components—the cast-iron bed, TBT-standard auxiliary equipment, and the compact cooling oil tank—visually demonstrating the advantages of its rigidity and integrated design.
(II) ZKF2103 3-Axis CNC Deep-Hole Drilling Machine
Developed for complex workpieces requiring multi-axis hole patterns, such as molds and hydraulic valve blocks, this machine offers drilling ranges of Φ4–Φ30mm and Φ5–Φ35mm and machining depths of 1000/1500/2000mm, enabling the completion of multi-position deep-hole machining on complex parts in a single setup.
The machine features a fully enclosed design to prevent leakage; the cooling system is equipped with visual process control valves, allowing for real-time pressure display and intuitive adjustment. Core support structures have been significantly upgraded: the clamping cylinder is centrally positioned to reduce overturning moments and workpiece deformation, while the guide frame employs a four-slide support structure to enhance overall rigidity and guidance precision.
Mechanical layout details have been comprehensively optimized: a rear-mounted motor design facilitates tool changes while protecting power components; specialized quick-change drill chucks and anti-drill devices improve tool installation and removal efficiency; the electrical cabinet is integrated into the side of the enclosure, saving floor space, ensuring tidy wiring, and simplifying machine transport; and an independent drill bit rack is standard at the enclosure end for organized tool storage. Product photos showcase typical workpieces—hydraulic valve blocks and molds—while highlighting core structural features such as the central clamping mechanism, four-slide guide frame, rear-mounted motor, and integrated electrical cabinet. II. Customized Special-Purpose Machine Series: High-Efficiency Dual-Axis Models for Batch Production and Complex Eccentric Hole Machining
To meet diverse customization needs, the company has launched the ZK21 dual-axis special-purpose machine series. This includes the ZK2103-2 general-purpose dual-axis drilling machine and the ZK2101LGX2 high-speed machine for batch production; both feature a modular bed design that significantly enhances process versatility.
(1) ZK2103-2 Dual-Axis CNC Deep-Hole Drilling Machine
Equipped with dual servo axes (X and Z), this machine handles concentric holes, eccentric holes, and arrays of holes at the same height. It is suitable for the composite machining of shafts, plates, and simple irregular parts. It supports drilling diameters of Φ4–Φ30 mm and a maximum depth of 1000 mm, with a footprint of 4350×3000 mm—offering a wider processing range than single-axis models of similar specifications.
The equipment utilizes a modular bed design, allowing for the expansion of functional modules as needed. It comes standard with a T-slot worktable that supports the rapid changing of various fixtures. The worktable integrates a headstock, enabling two machining modes: stationary workpiece with rotating tool, or synchronous rotation of both workpiece and tool. The cooling pressure regulation module is positioned behind a front guard, making pressure adjustment and status monitoring easy to see at a glance. The assembly diagram clearly illustrates the layout of the cooling system, drill rod box, guide bracket, T-slot worktable, and headstock, intuitively demonstrating the flexibility advantages of dual-axis machining.
(2) ZK2101LGX2 High-Volume Special-Purpose Dual-Axis Deep-Hole Drilling Machine
Specifically engineered for the mass production of oil holes in automotive/motorcycle connecting rods and small piston rods for coal mining machinery, this model handles drilling diameters of Φ3–Φ12 mm, a machining depth of 500 mm, and a maximum workpiece length of 600 mm. It stands as a benchmark machine for high-volume, precision small-hole machining. The equipment features outstanding design highlights optimized for mass production: dual sliding doors paired with a suspended control panel enable operation from three sides; dual independent drill-rod boxes allow two processing steps to be completed either synchronously or sequentially; and a T-shaped worktable supports the simultaneous mounting of four fixture sets for a four-station cyclic machining process. Since the machining stations and loading/unloading stations operate independently without interference, the downtime associated with workpiece changeovers is drastically reduced. Visuals showcasing the modular bed structure, dual drill-rod boxes, and multi-station worktable are presented alongside 3D models of connecting rods and piston rods, intuitively demonstrating the equipment’s compatibility with various workpiece types and its advantages for mass production.
III. Heavy-Duty Flagship: ZK2106A/W Dual-Purpose Gun-Drilling/BTA Deep-Hole Drilling Machine—Solving Complex Deep-Hole Challenges in Large Shaft Components
The ZK2106A/W is the high-end flagship model in this product lineup. It supports the two mainstream deep-hole processing methods—external chip removal (gun drilling) and internal chip removal (BTA)—within a single machine. It handles drilling diameters from Φ10mm to Φ60mm, with a maximum machining depth of 2,500mm, a maximum workpiece length of 4,000mm, and a maximum eccentricity of 180mm. Designed primarily for heavy-duty shaft components such as large piston rods, hydraulic cylinder barrels, and paper-rolling machine rollers, it is capable of machining complex deep-hole geometries, including concentric, eccentric, indexed, and figure-eight holes.
The machine incorporates several original technologies that address key industry pain points: a stepped bed design expands the clamping range for large components and lowers the center height of the drill-rod box, significantly enhancing overall rigidity; the headstock features a servo-driven indexing mechanism with lateral movement capabilities, facilitating easy eccentric hole machining; and a proprietary, patented dual-station composite guide unit allows a single mechanism to handle both gun-drill guiding/oil sealing and BTA oil supply/chip removal, enabling process switching without the need to change accessories. Industry-leading precision control: Both the headstock and the traversable steady rest are equipped with linear scales, achieving a coordinate display precision of 0.005mm and ensuring accurate locking of dimensions for eccentric machining. The cooling system features a separate oil tank and pump station design, incorporating a flap-type level gauge, multi-stage centrifugal pump, and external filter to ensure effective circulating filtration and stable temperature control. The machine’s 3D assembly model comprehensively displays key sub-assemblies—such as the circulation pump, drum filter, oil chiller, drill pipe box, steady rest, and composite guide unit—while actual photos of the paper-roll machine roller, the gun-drill/BTA dual-guide structure, the linear scale digital readout assembly, and the independent cooling oil tank showcase the heavy-duty composite machine tool’s technical prowess.
Furthermore, the product line includes the ZKF2108/BTA 3-axis deep-hole drilling machine with external chip removal, rounding out the portfolio for large-diameter, multi-axis heavy-duty machining. This creates a complete product lineup ranging from mass production of small-diameter holes and standard multi-axis mold machining to large-scale, heavy-duty composite machining.
IV. Core Advantages and Industry Value of the Product Matrix
As a specialized equipment manufacturer deeply rooted in the deep-hole machining sector, Dezhou Drillstar’s full range of gun-drilling machines leverages proprietary technology to deliver three key value upgrades:
Comprehensive application coverage: Covers hole diameters from 3mm to 60mm and machining depths from 500mm to 4000mm; supports single/dual/triple-axis configurations and combined gun-drilling/BTA processes; suitable for everything from mass production of small-to-medium parts to heavy-duty machining of large workpieces, molds, and complex hydraulic components.
Modular structure and cost-effectiveness: Standardized, modular designs for the machine bed, cooling system, auxiliary equipment, and worktable allow for flexible, on-demand configuration; options for both cast-iron and welded machine beds lower the entry barrier for customers.
High-efficiency, high-precision mass production: Features multi-station cyclic machining, synchronized operation of dual drill pipe boxes, and 0.005mm high-precision coordinate control; balances precision prototyping of single units with high-volume automated production, effectively replacing high-end imported deep-hole equipment and helping domestic manufacturers reduce costs and increase efficiency. This series of gun-drilling deep-hole machine tools has now been fully launched to the market. It offers customized, comprehensive deep-hole machining solutions for clients across sectors such as automotive components, hydraulic molds, construction machinery, coal mining equipment, heavy-duty cylinders, and military-grade shafts, thereby continuously driving the advancement and localization of high-end domestic precision deep-hole machining equipment.
