FESTO VASB-40-1-4-pur-b Vacuum Suction Cup

VASB-40-1-4-pur-b

VASB：Bellows-type vacuum suction cup (bellows design for height deviation compensation)

40：Suction cup diameter 40 mm

1：Number of bellows folds 1-fold

4：Port specification G1/4 internal thread

pur：Suction cup material PUR polyurethane, wear-resistant and tear-resistant, suitable for handling smooth or slightly rough workpieces

비：Base type Type-B, standard metal threaded base

주요 매개변수

Suction cup diameter: 40 mm

Bellows folds: 1-fold

Connection thread: G1/4 internal thread

재료: PUR polyurethane

Theoretical suction area: 대략. 1257 mm²

Maximum lifting force (-0.06 MPa vacuum): 대략. 75 N

작동 온도: -20 … +80 ℃

Applicable media: 진공, compressed air

특징: 1-fold bellows, 짧은 스트로크, high rigidity, suitable for flat workpieces, wear-resistant, low-marking performance

일반적인 애플리케이션 시나리오

Handling metal sheets, plastic parts, PCBs, cartons, laminated panels, glass and other flat workpieces; automated manipulators, 팔레타이징, sorting and feeding stations.

설치 & Matching Components

Connect directly to vacuum fittings / vacuum generator via G1/4 internal thread;
호환 가능 파티 OVEM, VAD series vacuum generators;
Vacuum filter is recommended to prevent debris from entering the vacuum generator;
Avoid contact with strong solvents and strong acids/alkalis for PUR material, otherwise accelerated aging will occur.

Domestic Alternative Reference

Specification matching: 40 mm, 1-fold bellows suction cup, G1/4 internal thread, polyurethane material

대체 모델: SMC ZP40BS-B04; domestic YIHEDA WEM31-40-1-G1/4 and other structurally equivalent suction cups.

Wear-part Reminder

The PUR suction cup is a consumable part. Frequent use may cause lip cracking and deformation. Replace it once air leakage or workpiece dropping occurs.

VASB-40-1-4-PUR-B Vacuum Suction Cup｜Complete Application Scenarios

핵심 기능: 40 mm, 1-fold bellows (short compensation stroke), wear-resistant PUR polyurethane, G1/4 internal thread; suitable for flat / slightly undulating workpieces, small vertical height compensation, not for large-offset or large-curvature curved surfaces.

✅ Recommended Industries & Stations

1) 자동차 부품

Loading/unloading of stamped sheet metal, galvanized sheets, painted plastic interior parts, lamp housings and decorative covers

Robot handling, transferring and positioning picking; not applicable for deep-curved workpieces (only 1-fold bellows)

장점: PUR is wear-resistant and hardly leaves indentations on painted surfaces

2) 3C 전자 / Lithium-battery Industry

Picking of PCB boards, laminated plastic panels, battery covers, aluminum-plastic films and flat module housings

조립 라인, transferring and test stations; low zinc-copper precipitation, available for F1a battery-line conditions

Suitable for precision workpieces vulnerable to scratching

3) 포장 & 기호 논리학

Picking of hard cartons, color boxes, plastic packaging boxes, hard plastic pallets and laminated panels

포장 기계, sorting manipulators and small-scale palletizing; not for soft films or wrinkled flexible bags (insufficient stroke of 1-fold bellows)

4) 일반 산업 자동화

Handling of injection-molded parts, acrylic sheets, tempered glass, aluminum plates, steel plates and ceramic tiles

Machine-tool loading/unloading, robot pick-and-place and transfer mechanisms; 1-fold bellows compensates minor height errors without buffer support.

5) Equipment Matching

Matched with: FESTO OVEM/VAD vacuum generators, vacuum filters, G1/4 vacuum fittings; robot end-of-arm suction cup modules, gantry manipulators.

✅ Suitable Workpiece Surfaces

Smooth flat surfaces, slightly rough flat surfaces
Minor height variation (short compensation stroke, only a few millimeters)
Surfaces prone to scratching requiring soft contact
Medium-weight workpieces, theoretical suction force of single cup: 60-75 N (@-0.06 MPa)

❌ Unsuitable Scenarios (Selection Pitfall Avoidance)

Large-curvature curved surfaces or heavily uneven workpieces: Only one bellows fold provides limited deformation, poor sealing and frequent dropping; select 2-3-fold VASB models instead.
Ultra-thin soft films, thin paper, wrinkled flexible bags: Risk of suction-wrinkling or suction-penetration.
Environment with strong solvents, strong acids or alkalis: PUR will swell and age; switch to NBR or SI silicone versions.
Long-term temperature above 80 ℃: Accelerated aging of polyurethane; silicone suction cup is recommended.
Porous breathable workpieces (foam, thick paperboard): Heavy vacuum leakage leads to insufficient suction force.

💡 Engineering Selection Tips

For workpieces with large height offset / floating requirement: Add suction cup buffer support or switch to multi-fold VASB-40-2-4-PUR-B.

Surface indentation prevention: PUR is optimal for this size; select -si (silicone) for high-temperature conditions; select -nbr (NBR) for oil-polluted conditions.

FESTO VASB-40-1-4-PUR-B Suction Cup Selection Checklist

목적: BOM review, project selection confirmation, on-site troubleshooting. Check item-by-item; replace suction cup model / accessories if any item fails.

Basic Suction Cup Verification

Check Item	Parameter of This Model	Engineering Judgment
Suction cup type	1‑fold bellows suction cup VASB	□ OK □ Not OK, 2‑fold /3‑fold bellows required
Suction cup diameter	40 mm	□ OK □ Not OK, change diameter
Connection thread	G1/4 internal thread	□ OK □ Not OK, change fitting / select external‑thread model
Suction cup material	PUR polyurethane	□ OK □ Not OK, switch to SI silicone / NBR nitrile rubber
Theoretical suction force (@‑0.06 MPa)	≈75 N	Safety factor calculation: Load × ≥2.5 safety factor
Bellows compensation stroke	짧은 (only a few millimeters)	□ Small workpiece height variation □ Large height offset → buffer support or multi‑fold suction cup required

✔ Suction-force calculation reference: Actual allowable load ＜ Theoretical suction force ÷ Safety factor; adopt safety factor 2.5~4 for general handling, ~ 위에 4 for high-speed handling.

Workpiece Condition Verification (All items shall be satisfied for this suction cup)
Workpiece surface: □ Flat / slightly undulating; Large-curvature curved surfaces & heavily uneven surfaces are prohibited
Workpiece material: □ Sheet metal, 플라스틱, PCB, 유리, ceramic tile, 단단한 상자; 다공성 폼, soft films and wrinkled flexible bags are prohibited
Surface protection: □ Indentation-free requirement (PUR applicable); □ Oil contamination on workpiece; □ Solvent / acid-alkali contact
Workpiece temperature: Operating temperature -20~+80 ℃; PUR is not recommended for long-term temperature above 80 ℃
Workpiece weight: Single-cup load within safe range; Increase suction-cup quantity if overloaded

III. Working-condition Verification

No strong solvent or strong acid-alkali in environment (PUR swells and cracks under solvent exposure)

No long-term temperature above 80 ℃; select -SI silicone version for high-temperature conditions

Dust-prone conditions: Vacuum filter shall be equipped to protect vacuum generator

Heavy oil-polluted conditions: NBR-material suction cup is preferred

BOM of Matching Components

요소	추천 모델 / 사양	주목
Vacuum generator	FESTO VAD / OVEM series	Select according to suction‑response time
Vacuum filter	VAF series	필수적인, prevent debris from entering generator
Fitting	G1/4 male‑thread adapter	Match suction‑cup G1/4 internal thread
Buffer support	If height offset exists	Mandatory when bellows stroke is insufficient
Vacuum pressure switch	VPE/VAS series	Vacuum monitoring, workpiece‑drop alarm

Prohibited Application Scenarios (Do not use VASB-40-1-4-PUR-B if any item applies)

Large-curvature workpiece surfaces, heavy height offset

Handling soft thin films, 종이, flexible bags

Porous breathable workpieces (foam, loose paperboard)

Long-term exposure to acetone, thinners and other strong solvents

Long-term ambient temperature above 80 ℃

Large workpiece height offset without buffer support

On-site Operation & 유지 관리 팁
PUR is a consumable. Replace promptly when lip cracking, 흉한 모습, air leakage or frequent workpiece dropping occurs.
Do not over-tighten during installation to avoid damage to suction-cup base thread.
Regularly clean dust and chips on suction-cup lip.
Avoid hard mechanical impact on suction cup to prevent permanent lip deformation.

Ⅶ. Quick-reference Alternative Models

Larger compensation stroke: VASB-40-2-4-PUR-B (2-fold bellows)
High-temperature conditions: VASB-40-1-4-SI-B silicone version
Oil-polluted conditions: VASB-40-1-4-NBR-B nitrile-rubber version
국내 대안: 40 mm, 1-fold bellows, G1/4 internal thread, PUR-polyurethane suction cup

FESTO 40 mm Suction Cup Alternative Models (Against VASB-40-1-4-PUR-B)

참조 모델: VASB-40-1-4-PUR-B｜40 mm, 1-fold bellows, G1/4 internal thread, PUR polyurethane, B-type metal base

VASB-series (Bellows suction cups, 40 mm, G1/4-B base, direct replacement without changing fittings)

모델	Bellows Folds	재료	주요 특징	애플리케이션
VASB‑40‑1‑4‑NBR‑B	1‑fold	NBR nitrile rubber	Oil‑resistant, wear‑resistant, 검은색; ‑20~80 ℃	Oil‑polluted sheet metal & stamped parts; Not for high‑gloss surfaces sensitive to indentation
VASB‑40‑1‑4‑SI‑B	1‑fold	SI silicone	High‑temperature resistant ‑40~200 ℃, food‑grade, 하얀색	High‑temperature workpieces, 식품 포장; Replace for fast‑aging PUR; Prone to leave marks
VASB‑40‑2‑4‑PUR‑B	2‑fold	PUR polyurethane	Enhanced height compensation with two bellows folds	Workpieces with height offset or slight curvature; First‑choice for insufficient 1‑fold‑stroke cases
VASB‑40‑2‑4‑NBR‑B	2‑fold	NBR	Oil‑resistance plus large compensation stroke	Oil‑polluted workpieces with height offset
VASB‑40‑2‑4‑SI‑B	2‑fold	SI	High‑temperature resistance plus large compensation stroke	High‑temperature and slightly‑curved workpieces

메모: VASB = bellows suction cup; B = metal threaded base; digit 1=1-fold, digit 2=2-fold; digit 4=G1/4 internal-thread port.

VAS-series (Flat-suction-cup, no bellows, 40 mm G1/4-B)

For perfectly flat workpieces, almost zero height compensation, high rigidity, cannot compensate height offset.

VAS-40-1-4-PUR-B: 푸르, flat non-bellows type
VAS-40-1-4-NBR-B: NBR oil-resistant flat type
VAS-40-1-4-SI-B: Silicone high-temperature-resistant flat type

Not for workpieces with height offset or slight curvature; Only for flat steel sheets and glass panels.

III. Other FESTO-series Alternatives (Different structure; fitting / bracket modification required)

ESS-40-BS: Modular ESS suction cup with M6 thread; replaceable suction cup lip for robot end-of-arm modules, 낮은 유지 비용, reusable base with fast-swap suction cup body.
VASBT: Bellows suction cup with protective sleeve; for workpieces with chips and burrs, prevents bellows from being cut by chips; preferred for stamping lines.
Quick-decision Selection Guide
Heavy oil contamination only: Select VASB-40-1-4-NBR-B
Temperature＞80 ℃ / food-industry application: Select VASB-40-1-4-SI-B
Workpiece height offset / slight curvature & frequent dropping: Upgrade to 2-fold VASB-40-2-4-PUR-B
Both oil-pollution and height offset: VASB-40-2-4-NBR-B
Perfectly flat workpiece without height offset: Adopt VAS flat-cup series
Heavy-chip production line with easy-to-damage suction cups: VASBT sleeve-protected version
브랜드 간 대안 (40 mm bellows suction cup, G1/4 internal thread)

SMC

ZP40BS-B04: 1-fold bellows, 폴리우레탄, G1/4 internal thread, equivalent to VASB-40-1-4-PUR-B

ZP40BN-B04: NBR oil-resistant version

Domestic YIHEDA

WEM31-40-1-G1/4-PUR: 1-fold bellows, G1/4 internal-thread polyurethane

WEM31-40-2-G1/4-PUR: 2-fold bellows version

Pitfall Reminders
2-fold suction cups have larger overall height; verify mechanical-envelope space to avoid hard collision.
Silicone SI leaves marks more easily than PUR on high-gloss surfaces; PUR is preferred for appearance-critical parts.
NBR swells under ketone-solvent exposure.
VAS flat suction cups have zero bellows compensation; minor workpiece unevenness will cause air leakage and workpiece dropping.