How to choose the right suction cup material for my workpiece surface?

Selecting the correct material is critical for grip and longevity. For high-temperature or oily metal surfaces, we recommend NBR (Nitrile) rubber due to its excellent oil resistance and heat resistance. For electronic components or PCBs, we offer Anti-Static (ESD) Silicone to prevent electrostatic damage. For general smooth surfaces like glass or plastic, standard Silicone or Polyurethane provides the best adhesion and abrasion resistance. Commaelec supports custom material formulations to match your specific environmental needs.

How do your suction cups handle uneven, curved, or porous surfaces?

Our engineering solutions are designed for challenging surfaces. We offer Ball Joint (swivel) mountings (like the ZP2-J series) that compensate for angular misalignment up to 15°-30°, ensuring full sealing contact on uneven workpieces. For porous materials (like cardboard or foam), we recommend using our Oval vacuum suction cups or adjusting the vacuum flow with our vacuum generators to maintain stable pressure and prevent workpiece deformation.

Can your vacuum cups reliably handle ultra-small or delicate electronic components?

Absolutely. Our ZP3 Compact Series is specifically engineered for the electronics industry, featuring diameters ranging from 1.5mm to 16mm. We also provide special Nozzle Vacuum Suction Cups (ZP2) with openings as small as 0.8mm for picking micro-lenses and chips. Combined with our integrated buffer springs, they ensure gentle yet precise handling, preventing scratches or breakage during high-speed pick-and-place operations.

China Bellows Vacuum Suction Cups ZP2-MB Supplier

Bellows Vacuum Suction Cups ZP2-MB

As a leading manufacturer in China, our factory offers the Bellows Vacuum Suction Cups ZP2-MB (diameters ø4–20 mm) specifically designed for tilted or spherical workpieces. We provide solutions featuring a unique corrugated (accordion-style) structure that enables built-in cushioning functionality without requiring additional space. We maintain ready stock in NBR, silicone, and anti-static materials, and offer M3/M5 threaded interface options.

Core Technologies

High Compatibility with Irregular Surfaces:Featuring an accordion-style bellows structure, Bellows Vacuum Suction Cups ZP2-MB automatically adapts to and tightly conforms to spherical, inclined, or irregularly shaped workpiece surfaces, ensuring a safe and stable gripping process.

Integrated Cushioning Design: The pleated structure provides inherent physical elasticity, effectively absorbing contact impact without the need for additional spring-loaded buffer mounts—thereby significantly conserving installation space.

Precision Miniaturization Applications: Specifically engineered for small, precision components; serves as a core solution for handling micro-parts in electronics manufacturing, precision assembly, and compact automation systems.

Multi-Industry Applicability: Widely utilized for gripping miniature spherical electronic components, irregular metal parts, and inclined plastic fittings; integrates seamlessly into small-scale robotic systems and precision packaging equipment.

Compact space adaptation: No additional buffer (spring-type) installation space is required. The integrated structure is designed for space-constrained automation equipment or robotic arm tips, enabling seamless integration into various compact production lines.

Key specifications: Diameter options: The sandblasted series of Bellows Vacuum Suction Cups ZP2-MB are available in multiple standard diameters, including φ4mm, φ6mm, φ8mm, φ10mm, φ15mm, and φ20mm.

Material Selection: A wide range of materials is available to meet diverse operational requirements, including nitrile rubber (NBR, with 'N' in the model designation), silicone rubber (marked 'S'), polyurethane rubber, as well as specialized materials like conductive nitrile rubber and conductive silicone rubber (marked 'GS'). These materials are designed to meet anti-static properties and resistance to specific chemical environments.

Connection options: Multiple threaded connections are available, including A3 for M3×0.5 external threads (compatible with φ4mm suction cups) and A5/H5 for M5×0.8 external threads (compatible with φ6mm, φ8mm and larger suction cups). Some models also support B5 internal thread joints, facilitating seamless integration with vacuum pipelines and robotic arm accessories.

I. Core strengths

Vacuum suction is a core solution for "flexible grasping" in industrial automation with four core advantages: non-damaging grasping, adaptability to multi-material/irregular workpieces, clean and environmental protection, and flexible operation. It can be adapted to different industry characteristics of workpieces (thin/thick, precision/coarse, sanitary/standard).

II. Extraction of applications by industry

A. Medicine and medical industry

A.1：Core requirements: Clean and pollution-free (FDA/GMP compliant), gentle and non-damaging, and cross-contamination prevention

A.2 Key scenarios:

1. Pharmaceutical packaging: drug bottle / pharmaceutical plate / infusion bag pickup (food grade silicone suction cup, no particle shedding)

2. Medical device assembly: surgical instruments/medical catheters/pieces of prosthesis handling (adjustable negative pressure, deformation protection)

3. Biological laboratory: petri dish/centrifuge tube/reagent card transfer (chemical resistant, sterile compatible)

B. Electronics and semiconductor industry

B.1 Core requirements: anti-static (10⁶-10¹¹Ω), precision positioning (error ≤0.01mm), scratch resistance

B.2 Key scenarios:

1. Chip/Semiconductor: wafer handling, chip packaging (porous ceramic/anti-static silicone suction cup, uniform negative pressure to prevent rupture)

2. PCB/Components: Flexible PCB, micro components (0402 resistors) surface-mounted (thin silicone/gel/micro suction cups to prevent wrinkling/tearing)

3. Display: LCD/OLED panel, touch glass grab (high transparent material, no stains and scratches)

C. Automobile and auto parts industry

C.1 Core requirements: large suction (single suction disk ≥500N), multi-specification adaptation (metal/plastic/glass), non-slip

C.2 Key scenarios:

4. Body manufacturing: steel plate / door frame handling welding (large diameter rubber / multi-suction cup array, anti-slip texture)

5. Glass / Interior: Windscreen installation, leather seat surface transfer (temperature resistant silicone / sponge suction cups, deformation protection)

6. Parts: engine cylinder body / gearbox housing grab (vacuum + mechanical lock, anti-fall)

D. Food and packaging industry

D.1 Core requirements: Food grade material (FDA certified), easy to clean, crush resistant

D.2 Key scenarios:

1. Food handling: baked goods / fresh meat / fruit sorting (low suction sponge suction cup, odorless and easy to wash)

2. Packaging automation: packaging bag opening, sterile carton molding (static elimination/ multi-point suction, suitable for thin/hard packaging)

E. Logistics and warehousing industry

E.1 Core requirements: efficient adaptation (multiple specifications of goods), stable pressure, anti-fall

E.2 Key scenarios:

1. Carton handling: e-commerce carton sorting (adjustable suction array, vacuum pressure)

2. Plate/roll: Wood board/plastic film roll transfer (long strip/annular suction cup, uniform adsorption to prevent offset)

F. New energy and special industries

F.1 New energy (lithium battery/pv):

1. Lithium battery plate (anti-static porous suction cup, anti-dust), photovoltaic glass (large suction silicone suction cup, no scratch)

F.2 Printing and paper

1. Paper/printed matter capture (absorbent paper material, slight negative pressure to prevent tearing and ink contamination)

III. Summary of core adaptation logic

Workpiece characteristics	Pipette adaptation programme	Corresponding industry scenarios
Thin / Fragile / Precision	Silicone/ceramic material, micro negative pressure, micro suction nozzle	Electronic semiconductors, pharmaceuticals
Heavy items / Large size	Rubber material, large diameter suction cup, multi-suction cup array	Automobiles, logistics panels
Health/Prevention of pollution	Food/medical grade silicone, easy to clean structure	Medicine, food
Soft / irregular surfaces	Sponge material, deformable suction cup	Car interiors, food
Antistatic requirements	Antistatic silicone, ion wind assisted	electronic semi-conductor

⑤ Vacuum inlet ② Pad diameter(mm)		B04	B06	B08	B10	B15	B20
⑤ Vacuum inlet ② Pad diameter(mm)		ø4	ø6	ø8	ø10	ø15	ø20
A3	M3x0.5(Male)	●	—	—	—	—	—
H5	M5x0.8(Male)	—	●	●	●	●	●
B5	M5x0.8(Female)	—	●	●	—	—	—

④Material
N	NBR
S	Silicone rubber
U	Urethane rubber
F	FKM
GN	Conductive NBR
GS	Conductive silicone rubber

Model
	② Pad dia.	③ Pad type	④ Pad Materia
ZP2	B02	MB	N S U F GN GS
	B04
	B06
	08

Model				øA	øB	øC	øD
	② Pad dia.	③ Pad type	④ Pad Material
ZP2	B06	MB	N S U F GN GS	6	7	3.3	8.4
	B08			8	9	4.7	9.6

Model				øA	øB	øC	øD	øE	øF	G	Y
	② Pad dia.	③ Pad type	④ Pad Material
ZP2	B10	MB	N S U F GN GS	10	11	6.8	10.8	7.8	11	9.5	3
	B15			15	16	9.4	14.4			11	4.5
	B20			20	21	12	18	10.8	15	13	5.5

Bellows Vacuum Suction Cups ZP2-MB

Bellows Vacuum Suction Cups ZP2-MB

ZP2 Series Bellows Vacuum Pad Unit

ZP2-T Series With Adapter Bellows Vacuum Pad

Core Technologies

How to Order

Dimensions(mm)

Pad Material and Characteristics

Application outline of pneumatic components (vacuum suction cup) in various industrial fields

①Vacuum inlet direction
T	Vertical