As the central fixed cavity of the sucker rod pump, our pump barrels come in both thick-walled and thin-walled designs. Featuring ultra-precise machining, the flawlessly smooth inner wall pairs accurately with the plunger to ensure a sealed lifting space. Standard treatments include chrome or nickel-carbon composite plating, delivering superior durability alongside exceptional wear and corrosion resistance.
Designed with connecting threads, positioning steps, or sealing grooves at both ends, our pump barrels facilitate seamless assembly with couplings and fixed valve assemblies. The overall structure is highly compact while offering robust pressure-bearing capacity. We currently offer chrome plating and NCC nickel-carbon composite plating, processing pump barrels with inner diameters ranging from φ27mm to φ146mm and lengths from 8ft to 36ft. Our manufacturing precision ensures an internal diameter deviation of ≤0.02mm and an internal surface roughness (Ra) of ≤0.4μm, with coating thickness strictly adhering to API specifications. Fully customized production is also available to meet specific client requirements.
Utilizing high-quality carbon steel as the base, this barrel features a dense and smooth chrome-plated surface. It delivers exceptional strength, rigidity, fit precision, and sealing performance. With low friction, superior wear resistance, and excellent corrosion resistance, it is perfectly adapted to harsh environments involving high pressure and sand-laden fluids, ensuring a long service life and minimal maintenance costs.
Built on a naval brass substrate, this variant offers inherent resistance to seawater corrosion and dezincification, combined with excellent strength and toughness. The dense, smooth chrome plating further enhances its anti-wear, anti-friction, and corrosion-resistant properties. Engineered specifically for marine and high-pressure applications, it guarantees stable dimensions, reliable sealing performance, and extended operational longevity.
The NCC coating boasts high hardness, self-lubrication, and an extremely low friction coefficient. Its optimal comprehensive performance includes outstanding wear and corrosion resistance, high-temperature tolerance, and low internal stress that prevents cracking. While the manufacturing process is complex and carries a higher cost, it provides an exceptionally long service life, making it the ideal solution for extreme high-corrosion, high-wear, and long-cycle operating conditions.
We offer two premier coating processes: traditional chrome plating and advanced NCC nickel-carbon composite plating. Our nickel-based nano-carbon composite coating sets an industry benchmark in wear resistance, corrosion resistance, and high-temperature tolerance. Featuring an ultra-low friction coefficient, excellent self-lubrication, and exceptional adhesion that prevents delamination, this coating delivers a significantly longer service life compared to ordinary chrome plating. It is specifically engineered for demanding environments—such as deep wells, ultra-deep wells, and conditions with severe corrosion and heavy wear—ensuring maximum stability during long-term operations.
To meet varied operational requirements, we manufacture pump barrels using a wide range of premium materials. Options include carbon steel (1020, 1026, 1045), naval brass, and specialized alloy steels (304, 316, 316L, S50100, 4130, 13Cr, P9, 1Cr5Mo).
Our product line features full coverage of standard diameters, including φ27, φ32, φ38, φ44, φ50, φ57, φ63, φ70, φ83, φ95, φ108, φ120, and φ146. We support lengths of up to 40 feet, ensuring precise matching for diverse well configurations.
Backed by nearly 30 years of dedicated production experience, our products guarantee stable, reliable quality and outstanding cost-effectiveness. This proven track record has established our solutions as a widely trusted choice across the global market.
Crafted from high-quality alloy steel, this pump barrel utilizes high-precision honing and mature chrome plating technology to deliver exceptional dimensional accuracy, stability, and wear resistance. By strictly controlling substrate strength and coating adhesion, we ensure outstanding cost performance and reliability. As a classic model designed for long-term use, it is perfectly suited for most conventional oil and gas well conditions, backed by consistent quality and stable delivery schedules.
Engineered with a specialized naval brass substrate, this barrel offers superior resistance to salt spray, general corrosion, and dezincification. The added chrome plating further enhances its wear resistance and sealing capabilities. Outperforming ordinary steel barrels in corrosive environments, it is ideally suited for offshore locations, wells with high water cuts, and operations involving corrosive media. This design guarantees a longer service life and safer overall operation.
Leveraging advanced nickel-carbon composite coating technology, this barrel provides unparalleled wear resistance, corrosion protection, high-temperature tolerance, and self-lubrication. The dense coating features strong adhesion that effectively prevents peeling or delamination under extreme stress. With vastly improved comprehensive performance and an extended service life, it is engineered to conquer harsh working conditions—including deep wells, ultra-deep wells, and heavy-wear environments—thereby reducing maintenance frequency and maximizing overall operational efficiency.
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