Stable Foundations Begin at the Mounting Point
A heavy gantry mill, press brake or forging press does not sit still in service. Every stroke, spindle rotation and rapid traverse sends vibration through the base and into the floor. If the mounting points are weak, the machine loses level, the floor transmits noise, and precision drifts. If the mounting method relies on drilled anchor bolts and grouting, installation becomes slow, costly and difficult to relocate.
That is the problem Hebei Prexi CNC Equipment Co., Ltd. builds around. The company supplies cast iron leveling pads, nitrile rubber damping pads, spring-damped isolators, pneumatic mounting pads, damping bolts and ultra-precision adjustment feet. The product images show the design logic clearly: thick cast iron bodies, U-shaped anchor slots, side adjustment screws with hex nuts, and spring isolators that combine black coil springs with a central damping element inside a yellow steel housing.
Why Bolt-Free Vibration Isolation Changes the Installation Equation
Traditional machine installation often means drilling the floor, embedding anchor bolts and waiting for grout to cure. That sequence adds civil work, delays commissioning and makes future line changes expensive. Bolt-free mounting pads replace that permanent connection with a stable, reusable support point. The machine is placed on the pads, leveled with a screw or pneumatic adjustment, and locked with nuts.
The practical benefits are direct. Heavy equipment can be installed on upper floors without damaging the slab. A single technician can complete leveling with a wrench. When production changes, the machine can be moved and the pads reused. The mounting system also introduces a controlled damping layer between machine and floor, which helps reduce structure-borne noise and protects the machine from incoming ground vibration.
Bolt-free does not mean calculation-free. Buyers should divide total machine weight by the number of support points, then apply a safety factor of 1.2 to 1.5. Rubber materials also experience minor creep, so the level should be rechecked about two weeks after commissioning. These are normal steps for a reliable installation.
Heavy-Duty Cast Iron Leveling Pads for Presses and Gantry Machines
For large machine tools and metalforming equipment, the S78-1 and S78-18 series are built around high load capacity. The S78-1 heavy-duty adjustable pad is manufactured to the JB/T6607 standard and uses a fully machined cast iron top housing with a quenched and tempered carbon steel lifting screw. The coarse thread supports smooth lifting and resists thread stripping. Model S78-1-02 is rated at 1,500 kg per pad, while S78-1-03 is rated at 3,000 kg per pad.
The S78-18 rectangular series goes further into heavy press territory, with single-pad load capacity from 5 to 20 tons. The rectangular footprint suits large general-purpose presses, punch presses, shears and press brakes. The S78-13 square series is another strong option for large and medium metalforming equipment, with rated capacities from 5,000 kg to 15,000 kg per pad. Nitrile rubber damping elements resist oil, coolant and aging in workshop conditions.
The black cast iron pads in the images show a U-shaped top slot for anchor bolts, a thick base for stability and a side adjustment screw for leveling. This is a practical configuration for gantry machining centers, heavy CNC lathes, plate shears, press brakes, punch presses, forging equipment and large injection molding machines.
Spring Isolators and Rubber Pads for Low-Frequency and General Isolation
Not every vibration problem is best solved with a solid pad. Punch presses, forging hammers, fans, compressors and cooling towers often produce strong low-frequency energy that requires a softer support system. The spring-damper isolator combines high-strength coil springs with a high-damping rubber or polyurethane element. The springs carry high loads and provide low-frequency isolation, while the damping unit absorbs energy during startup, shutdown and resonance passage.
The spring isolators shown in the images use multiple black coil springs around a central damping element, assembled inside a yellow steel housing with a top plate. Natural frequency is typically 3 to 8 Hz, which is effective for vibration below 20 Hz. Optional limit stops and leveling screws improve safety and adjustment. These units suit impact machinery such as presses, shears and press brakes, rotating machinery such as fans, centrifuges, air compressors and vacuum pumps, plus chillers, cooling towers, heat pumps, crushers, vibrating screens and conveyors.
For general plant services, JZD rubber anti-vibration pads offer a simple solution. They are made from nitrile rubber through integral vulcanization, contain no metal parts, and are laid flat under equipment. The material resists oil and coolant and can be cut to size. Typical applications include fans, water pumps, air compressors, chiller units, air conditioning units and small machine tools.
For precision equipment, the S78-11A pneumatic mounting pad uses compressed air as an elastic medium. Natural frequency can reach 3.5 to 4 Hz, with vibration isolation efficiency of at least 95%. Internal pressure adjusts support height and stiffness, making one pad adaptable to different loads. These pads are used with coordinate measuring machines, precision grinders, jig borers, CNC machine tools, laboratory instruments and automated assembly lines. S80-1 damping bolts are another option for compact connections where fastening and vibration absorption must work together.
Precision Leveling for CNC and Metrology Equipment
High-precision machining centers, gantry mills, floor-type boring machines and precision grinders need more than load capacity. They need repeatable, stable leveling. The CJMTZA ultra-precision adjustment pad uses a closed precision screw structure with a high-strength cast iron body, a precision-ground alloy steel adjusting screw and a sealed housing that keeps chips, dust and cutting oil away from the thread.
Leveling accuracy can reach 0.01 mm per meter. The thread self-locks after adjustment, so height does not drift under machine vibration. The base also incorporates a buffer structure to absorb cutting vibration and reduce transmission to the floor. With models rated up to 120,000 N per pad, the series covers machining centers, gantry milling machines, jig grinders, mold processing equipment and heavy CNC machine tools.
Other machines need different compromises. The S78-7 rectangular mount is designed for equipment without base mounting holes, such as grinders, rubber mixing machines and forming presses. The S78-5, S78-8, S78-9 and S78-10 series cover light and medium equipment, including small lathes, drilling machines, grinders, textile machinery, printing equipment, food processing lines and laboratory instruments. Matching the pad family to the machine type is the first step toward stable, quiet operation.
From Single Machine to Flexible Production Line
The economics of machine installation are shifting. Manufacturers want equipment that can be commissioned quickly, moved without breaking the floor, and rearranged as product demand changes. Bolt-free leveling pads support that model. They reduce civil works, shorten installation time, protect floor slabs and allow machines to be regrouped into cells for flexible manufacturing.
This matters in automotive stamping, sheet metal fabrication, mold shops, aerospace machining, heavy equipment assembly, mining and aggregate processing, HVAC equipment rooms and precision laboratories. In each case, the mounting point must carry load, control vibration and preserve level. A well-selected pad does all three without turning the floor into a permanent construction project.
Manufacturing Backing Buyers Can Verify
Hebei Prexi CNC Equipment Co., Ltd. was founded on February 2, 2018. The original factory was in Beijing and moved to Hebei to support production capacity. The company is now located in Zhaizi Town, Nanpi County, Cangzhou City, Hebei Province, with 1,500 square meters of production space and three large workshops. Its production scope includes communication mobile houses, RF cabins, steel structures, oil drilling machinery, machine tool shock absorbers, high-speed train shock absorbers and fiberglass reinforced plastic products.
As an original manufacturer of industrial vibration isolation equipment, the company maintains a patent portfolio covering invention patents, utility model patents and design patents. Its quality management system has been certified, and the company passed EU CE certification in October 2024. In 2024 it was recognized as a Hebei Provincial Technology-based Small and Medium-sized Enterprise. The business philosophy is built on Integrity, Innovation, Consensus and Development, with a customer-first approach and respect for contracts and commitments.
How to Build a Reliable Mounting Specification
Start with the machine. Confirm total weight, number of support points, center of gravity, anchor hole dimensions and expected vibration frequency. Calculate the load per point and add a safety margin. Select a pad family that matches the application: heavy cast iron pads for presses and gantry machines, spring isolators for low-frequency impact and rotating equipment, rubber pads for general plant services, pneumatic pads for precision isolation, and CJMTZA pads for micron-level leveling.
Then plan the installation. Clean the floor, position the pads symmetrically, level the machine, and tighten lock nuts. Recheck level after two weeks to compensate for rubber creep. If the machine will be moved, deflate pneumatic pads before lifting and remove pads before relocation. These simple steps protect the equipment and extend pad life.
Talk to a Mounting Specialist
Hebei Prexi CNC Equipment Co., Ltd. welcomes inquiries from machine tool builders, distributors, plant engineers and maintenance teams. Send the machine weight, number of support points, equipment type, floor condition and target leveling accuracy, and the team can help match the right mounting pad or isolator.
Company: Hebei Prexi CNC Equipment Co., Ltd.
Address: Zhaizi Town, Nanpi County, Cangzhou City, Hebei Province, China
Contact: Jin Lifang
Phone: 18210848865
Landline: 0317-8770888
Fax: 0317-8686333
Email: 1007136148@qq.com
Website: www.puruixipad.com
