Instrument Parts & Accessories

Precision Ruby Ball for needles high precision probe ruby balls High-precision ruby ball size D 1.0mm-5.0mm Accuracy: +-0.005mm We can also customize the Probes

Minimum Order: 1000

LED Light Bars are luckylight’s innovative solution to fixed message annunciation. They are used as annunciator that serves three customer functions: status indication, backlighting fixed messages and analog level indications (arrays). The LED Light Bars provide exceptional brightness at very low drive current for those applications where portability and battery backup are vital. These rectangular light sources are configured in single-inline and dual-in-line packages that contain either single or segmented light emitting areas. They are also X-Y stackable. Color choices include green, red, yellow, white, blue, orange and bi-color. Luckylight’s LED Light Bars are used in a wide variety of end products including test and measurement equipment, point-of-sale terminals, telecom systems, office equipment, consumer electronics, and medical equipment.

Minimum Order: 2000

Alphanumeric Through-Hole LED Displays are offered in a variety of packages such as Single Digit, Dual Digit, Three Digit and Four Digit options, and color choices include green, red, yellow, white, blue and orange. The alphanumeric through-hole LED displays can display any character of the alphabet, along with numerous other characters and symbols. Luckylight’s Alphanumeric Through-Hole LED Displays are used in a wide variety of end products including test and measurement equipment, point-of- sale terminals, telecom systems, office equipment, consumer electronics, and medical equipment. These alphanumeric through-hole displays are easily mounted on PC Boards or sockets. The highly integrated customization capability of alphanumeric through-hole LED displays also enables the products to fit well to specific customer design needs, making the products unique to the customers’ applications.

Minimum Order: 2000

LED dot matrix displays are composed of an array of individual LEDs (light- emitting diodes) arranged in rows and columns. When assembled into a panel, these displays can showcase a wide range of characters, numbers, and simple graphics. The display mechanism involves illuminating specific pixels or dots on the LED matrix to form the desired visual elements. Luckylight offers a diverse selection of LED dot matrix displays to cater to a variety of applications. Our LED dot matrix displays feature varying LED arrangements, including 5x7, 5x8, 8x8, 16x16, and 32x16 configurations. Additionally, our displays come in a wide array of emission colors, including green, red, yellow, white, blue, and orange. We also provide dual-color and RGB options to meet specific customer requirements.

Minimum Order: 2000

Luckylight offers a full range of surface mount 7-segment displays ranging from standard brightness displays to ultra bright displays. Single Digit, Dual Digit, Three Digit and Four displays are available in assorted character heights and colors. Compared with through-hole 7-segment displays, the surface mount 7-segment displays feature lower power requirements, high light output, less space and more design flexibility. Luckylight’s SMD 7-segment LED displays are used in a wide variety of end products including test and measurement equipment, point-of-sale terminals, telecom systems, office equipment, consumer electronics, and medical equipment. Size options include 5.08mm, 7mm, 10mm, 14.2mm, 20.32mm and 25.4mm, and color choices include green, red, yellow, white, blue and orange. The highly integrated customization capability of Luckylight SMD 7-segment displays also enables the products to fit well to specific customer design needs, making the products unique to the customers’ applications.

Minimum Order: 2000

Luckylight offers a full range of 7-segment displays ranging from standard brightness displays to ultra bright displays. Single Digit, Dual Digit, Three Digit and Four Digit displays are available in assorted character heights and colors. Luckylight's 7-segment LED displays are used in a wide variety of end products including test and measurement equipment, point-of-sale terminals, telecom systems, office equipment, consumer electronics, and medical equipment. Size options for Through Hole and surface mount packages include 7mm, 10mm, 14.2mm, 20.32mm, 25.4mm and 30.48mm. Color choices include green, red, yellow, white, blue and orange. The highly integrated customization capability of Luckylight 7-segment displays also enables the products to fit well to specific customer design needs, making the products unique to the customers' applications.

Minimum Order: 2000

Today, we’d like to introduce a hydraulic screw-in cartridge proportional solenoid valve equivalent to HydraForce SP10-57D. It is a direct-acting 3 position, 5 port proportional directional control. With port 1 as a load sense port it is a screw in cartridge type for use with general purpose hydraulic fluids. Technical parameters of AAK E-SP10-57D Hydraulic Direct-acting Proportional directional control Valve: Operating Pressure: 250 bar (3625 psi) Flow: 22.7 lpm max. (6 gpm) Internal Leakage: 246 cc /minute max. at 207 bar (3000 psi) Minimum Pull-10 Voltage: 85% of nominal at 207 bar; Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); Cavity: VC10-5 The advantages of AAK Hydraulic Direct-acting Proportional Valve E-SP10-57D are: 1. The quality of this valve is benchmarking HydraForce, but price is much cheaper. 2. The service life is 2 times that of domestic hydraulic cartridge valve manufacturers in China. This valve is currently in testing and going to be available soon. Welcome to try it out, you will be satisfied with its quality and performance! AAK HYDRAULIC VALVES (853) 2025-11-26

Minimum Order: 1 bags

Support sample making, sample customization, large-scale machining factory, advanced technology, uniform, no scratches, smooth surface, no convex points, no abnormal corners

Support sample making, sample customization, large-scale machining factory, advanced technology, uniform, no scratches, smooth surface, no convex points, no abnormal corners

Quickly customize mold processing solutions and mold drawings according to drawings, with advanced technology, preferential prices, high precision, suitable for batch product mold opening in various industries

Due to the tariff war initiated by the Trump administration, all of our American customers have ceased inquiries, orders, production, and shipments, resulting in orders being put on hold. The customers stated that they are not planning to cancel the orders, but rather to pause for a while, hoping that the situation can change and wait for a better solution before shipping. AAK has been committed to producing and exporting high-quality hydraulic threaded screw-in cartridge valves that benchmark international first-line brands. Europe and America are our main markets, with the United States accounting for over 50% of AAK's export value. The tariff war has a significant impact on Chinese hydraulic cartridge valve manufacturer AAK. Fortunately, AAK has accumulated over 15 years of experience in the foreign trade export industry, and its customers in countries other than the United States, especially Russia and India, are increasing year by year. After Western brands withdrew from the Russian market, Chinese mechanical components filled the gap. The performance in the field of construction machinery is particularly outstanding, with Chinese brands' market share in Russia jumping from 43% in 2023 to 66% in 2024. As a core component of construction machinery, the export share of hydraulic threaded screw-in cartridge valves has grown synchronously. China's exports of construction machinery products (including supporting components) to India will maintain double-digit growth in 2025, especially in categories such as cranes and excavators. Chinese brands will quickly replace European and American products through their cost-effectiveness advantages. The demand for hydraulic threaded screw-in cartridge valves as core transmission components is increasing synchronously. We have also received multiple trial orders from new customers in Russia and India recently. It is within reach to turn these new customers into long-term repeat customers with AAK's excellent quality and high-quality service. No matter how policies and international situations change, AAK's good quality, good price, and good service will always be the first pursuit of customers. Although Chinese hydraulic cartridge valve manufacturer AAK has temporarily encountered some obstacles in the US market, its core advantages are universal and popular in any country. In the long run, we believe that our overall development will not be affected, and may even be better. AAK HYDRAULIC VALVES (846) 2025-04-23

Minimum Order: 1 bags

2 months ago in early February, AAK customized a PV72-30AM Proportional Valve Assembly for a European customer. The valve assembly includes a HydraForce solenoid operated, pressure compensated, spool type, normally closed, proportional priority flow control valve PV72-30AM-0-N-12DG, and a HydraForce CV08 series Check Valve, assembled to an aluminum block. This is just very similar to a valve and block assembly that we shipped to a customer in Russia before, and we finished it in 15 days and a/f’d it to customer by end February. 2 weeks ago in early April, we received email from customer that they are happy with test result and are willing to place order for another batch – part of them to be shipped by air and remaining to be shipped by railway or sea. This batch is now in production and will be ready by end April. PV72-30 proportional valve is one of our best sellers and is usually in stock shortage. Last week, we just shipped a test order to a customer in Belarus. There are several hydraulic cartridge valve manufacturers in Ningbo China who can offer PV72-30 model, but AAK is the top choice in combining the price, quality, fast delivery and efficient customizing service. If you are also in need of this model, do not hesitate to contact us. You will not be disappointed. AAK HYDRAULIC VALVES (845) 2025-04-15

Minimum Order: 1 bags

Chinese Hydraulic Screw-in Cartridge valve manufacturer AAK often receives various questions from overseas customers, some of which even come from college students conducting academic research. Today, we will once again introduce the main materials used for seals in hydraulic screw-in cartridge valves, as well as their respective characteristics: 1. Rubber Sealing Materials 1) Nitrile rubber (NBR) - Excellent oil resistance, suitable for conventional hydraulic oil environments, with a working temperature range of -40 ℃ to+120 ℃. - Mainly used in static sealing scenarios, such as O-rings and some combination seals 2) Fluororubber (FKM) - High temperature resistance (up to 200 ℃), chemical corrosion resistance, suitable for hydraulic oil containing phosphate esters or highly corrosive media. - Commonly used in high-pressure systems or extreme temperature environments. 3) Silicone rubber (VMQ) - Outstanding cold resistance (-70 ℃ to+200 ℃), but low mechanical strength, only suitable for static sealing 2. Polymer Sealing Materials 1) Polytetrafluoroethylene (PTFE) - Extremely low friction coefficient, good self-lubricating properties, strong corrosion resistance, suitable for high-speed or chemically corrosive environments. - Often used as a filling material in conjunction with rubber, or in combination with seals (such as Glay rings, seals). 2) Polyurethane (PU) - High wear resistance and anti extrusion strength, suitable for high- pressure reciprocating motion seals (such as Y-shaped rings, U-shaped rings), working temperature -30 ℃ to+100 ℃. 3) Nylon (PA) - Oil resistant and wear-resistant, used for non direct sealing components such as guide rings and support rings, with a working temperature of -40 ℃ to+120 ℃. 3. Metal Sealing Materials Stainless steel/copper alloy - Used for extreme high pressure (>32MPa) or high temperature (>450 ℃) scenarios, achieving metal to metal sealing through precision machining. 4. Composite Sealing Materials Clip on rubber+rubber (lace ring) or PTFE+rubber (Glay ring/Steller seal) - Combining the elasticity of rubber with the wear resistance of PTFE/sandwich material, suitable for high-pressure dynamic sealing (such as valve spool and valve cage). Selection Suggestions - Normal working conditions: Priority should be given to using nitrile rubber or polyurethane. - High temperature/corrosive environment: Fluorine rubber or PTFE composite materials are better. - Ultra high pressure scenario: requires metal seals or combined sealing structures. AAK HYDRAULIC VALVES (844) 2025-03-17

Minimum Order: 1 bags

For each hydraulic Screw-in cartridge valve, hydraulic cartridge valve manufacturer AAK conducts very strict quality inspections from raw materials to shipment, and the inspection processes is roughly as follows: 1. Raw material inspection The raw material manufacturer provides material analysis reports to hydraulic cartridge valve manufacturer AAK, and AAK regularly entrusts third-party organizations to conduct material analysis. 2. Inspection of purchased finished products outside For some components that hydraulic cartridge valve manufacturer AAK purchased outside, such as the coils, O-Rings, TPE back-up rings etc, the component manufacturer provides material reports and inspection reports to AAK, and AAK conducts size sampling before storage. 3. Self made semi-finished product inspection For each component that is produced in our own factory, hydraulic cartridge valve manufacturer AAK inspects the full size of the first piece, then run into mass production. During production, process full-size inspection; After production, process full-size inspection according to proportion randomly. 4. Inspection after heat treatment Key dimensions are randomly inspected, and the outsourced heat treatment manufacturer provides hydraulic cartridge valve manufacturer AAK a metallographic analysis report. AAK conducts metallographic analysis on each batch of outsourced heat treatment materials through sampling in a third party. 5. Inspection of self-made finished products Full inspection of precision machining dimensions, grinding and matching. 6. Assembly inspection Random inspection 7. Finished product testing before shipping All products must pass 100% performance testing before being stored or shipped. 8. Delivery inspection Fully inspected shipped materials consistent with the order requirements. 9. Fatigue Test Each product is scheduled to undergo durability testing, record and track relevant data, and mass produce after passing the inspection. AAK HYDRAULIC VALVES (843) 2025-03-11

Minimum Order: 1 bags