SMC CDG1BN20-300 Round Cylinder

This is a standard double-acting round cylinder of SMC CG1 series, featuring built-in magnet ring, rubber cushion and basic mounting style. 내경 사이즈: 20 mm, 뇌졸중: 300 mm. It is applied to linear driving, positioning and clamping of automated equipment.

모델 코드 설명

코드 세그먼트	설명
CDG1	Series code for SMC standard round cylinders: C = Cylinder, D = With built-in magnet ring, G = Standard type, 1 = Single rod & double acting
비	장착 코드: B = Basic type (without mounting accessories), F = Flange type, K = Foot type, T = Trunnion type, 등.
N	Cushion code: N = Rubber cushion, A = Adjustable air cushion
20	내경 사이즈: 20 mm (Standard bores: 20, 25, 32, 40, 50, 63, 80, 100 mm)
-300	Stroke length: 300 mm (Standard stroke: 50~1000 mm; Custom strokes available)

성명: Single rod double-acting round cylinder, basic type with built-in magnet ring and rubber cushion, bore 20 mm, 뇌졸중 300 mm.

주요 기술 사양

범주	사양	비고
일반 정보
상표 / 시리즈	SMC CG1 Series	Industrial standard round cylinder
Model No.	CDG1BN20-300	표준 주문 번호
장착 스타일	기본형 (accessories mountable)	ISO 준수 6431
보호 등급	IP40	Dustproof and splash-proof
Operation Characteristics
작동 모드	Double acting, single rod	Bi-directional pneumatic drive
Built-in Magnet Ring	예 (marked by D)	Magnetic switch mountable for position detection
Cushion Type	Rubber cushion (marked by N)	Polyurethane cushions at both ends for impact absorption
치수
Bore	20 mm	Standard size
뇌졸중	300 mm	Standard stroke
피스톤 로드 직경	8 mm	High-strength chrome-plated stainless steel
Barrel Material	Aluminium alloy (Hard anodized)	경량 & 부식 방지
Piston Rod Material	스테인레스 스틸 (SUS304)	Wear-resistant & rust-proof
무게	대략. 0.8 kg	With slots for magnetic switches
성능 매개변수
작동 압력 범위	0.05~1.0MPa	For compressed air
맥스. 작동 압력	1.0 MPa	Transient peak ≤ 1.2 MPa
작동 온도	-10°C ~ +60°C	Standard environment with dry air
맥스. 속도	500 밀리미터/초	Subject to load and air supply flow
Theoretical Output Force	31.4 N @ 0.1 MPa / 314 N @ 1.0 MPa	Calculated value under no load
Port Parameters
포트 스레드	Rc1/8 (PT1/8)	Standard pneumatic thread
Number of Ports	2 (1 on front cover, 1 on rear cover)	Available for single / double acting connection
Magnetic Switch Slots	예 (4 슬롯)	Compatible with SMC D-M9 series switches

Cross-brand & Obsolete Model Replacement

원래 모델	교체 모델	설명
SMC CG1BN20-300	CDG1BN20-300	Upgraded version with built-in magnet ring, 완벽하게 호환됨
FESTO DSBC-20-300-PPVA-N3	CDG1BN20-300	기능적으로 동일함; 20 mm 보어, 300 mm 스트로크, double acting with magnet ring
Airtac SE20X300S	CDG1BN20-300	국내 대안; Similar dimensions, slightly lower performance
CKD SCA2-CB-20B-300	CDG1BN20-300	Japanese brand alternative; Compatible mounting dimensions
NUMATICS R20X300	CDG1BN20-300	유럽 사람 & American brand alternative; Verify mounting style before replacement

선택 참고 사항: Confirm full consistency of bore size, 뇌졸중, 장착 스타일, cushion type and magnetic switch compatibility for replacement.

Partial Model List of CDG1B Series

모델	Bore (mm)	뇌졸중 (mm)	장착 스타일	Cushion Type	Built-in Magnet Ring	비고
CDG1BN20-50	20	50	기초적인	고무	예	표준 모델
CDG1BN20-100	20	100	기초적인	고무	예	표준 모델
CDG1BN20-150	20	150	기초적인	고무	예	표준 모델
CDG1BN20-200	20	200	기초적인	고무	예	표준 모델
CDG1BN20-250	20	250	기초적인	고무	예	표준 모델
CDG1BN20-300	20	300	기초적인	고무	예	Subject model
CDG1BN20-350	20	350	기초적인	고무	예	표준 모델
CDG1BN20-400	20	400	기초적인	고무	예	표준 모델
CDG1AN20-300	20	300	기초적인	Air cushion	예	Adjustable cushion
CDG1BF20-300	20	300	플랜지	고무	예	Front flange mounting
CDG1BK20-300	20	300	Foot	고무	예	Bottom mounting
CDG1BT20-300	20	300	Trunnion	고무	예	Oscillating mounting

일반적인 결함 & 문제 해결

결함 현상	가능한 원인	솔루션
Cylinder fails to move / Slow movement	1. Insufficient air supply pressure	1. Adjust pressure to 0.4~0.6 MPa
	2. Pipeline blockage / Air leakage	2. Tighten fittings and clean filter
	3. Solenoid valve failure	3. Test solenoid valve and replace if necessary
	4. Piston rod stuck	4. Dismantle to check rod straightness and clean cylinder barrel
Cylinder crawling / Shaking	1. Insufficient lubrication	1. Install air lubricator with ISO VG32 lubricant
	2. 초과 적재	2. Reduce load or use larger bore cylinder
	3. Moisture / impurities in compressed air	3. Fit air dryer and precision filter
	4. Improper cushion adjustment	4. Adjust cushion needle valve for steady deceleration
Air leakage	1. Aged / damaged sealing rings	1. Replace sealing kit (standard repair kit)
	2. Scratched piston rod	2. Repair or replace piston rod and check guide bushing
	3. Loose end cover bolts	3. Tighten end cover bolts diagonally and evenly
	4. Damaged tube fittings	4. Renew air tubes and fittings for good sealing
No signal from magnetic switch	1. Incorrect switch position	1. Reposition switch to align with piston magnet ring
	2. Failed magnet ring	2. Replace cylinder or piston assembly
	3. Damaged switch	3. Test switch continuity and replace if faulty
	4. 잘못된 배선	4. Check wiring and correct polarity
Poor cushioning / Loud impact noise	1. Worn cushion pads	1. Replace polyurethane cushion pads
	2. Improper cushion valve setting	2. Gradually adjust needle valve until impact noise disappears
	3. Excessive load inertia	3. Add external buffer or speed control valve
	4. Overhigh air pressure	4. Reduce working pressure and optimize system design
Bent / Deformed piston rod	1. Exposed to radial load	1. Add guide unit to avoid radial force
	2. Large coaxiality error during installation	2. Calibrate installation; keep coaxiality ≤ 0.1 mm/m
	3. Excessive impact force	3. Optimize cushion system to reduce impact
	4. Material fatigue	4. Replace piston rod or use reinforced cylinder

애플리케이션 & 산업 사례

6.1 적용 가능한 시나리오

자동화된 생산 라인: 자재 취급, workpiece positioning, assembly and pressing

전자 제조: PCB transportation, semiconductor packaging and component positioning

포장기계: Carton forming, 밀봉, labeling and filling actuators

음식 & 음료 산업: Cap tightening, bottle conveying and filling valve control

공작기계: Clamp actuation, worktable positioning and tool changing mechanism

의료 장비: Sample delivery and positioning for diagnostic instruments

6.2 권장되지 않는 시나리오

Severely corrosive environment: No special anti-corrosion treatment; Not suitable for strong acid, alkali or heavy salt spray. Stainless steel series is recommended.

Oil-free operation: Long-term operation without lubrication accelerates seal wear. PTFE seals are required.

High-frequency & high-speed operation: Not for cycling over 5 초당 횟수. High-speed cylinder series is recommended.

Heavy radial load: Radial force will bend the rod and damage seals. Extra guide mechanism is required.

Extreme temperature: Operation below -10°C or above +60°C impairs sealing performance and service life.

6.3 일반적인 적용 사례

사례 1: Electronic Component Assembly Line

애플리케이션: Positioning for component insertion on PCB

구성: CDG1BN20-300 + SMC D-M9B magnetic switch + precision guide rail

효과: Positioning accuracy ±0.1 mm with excellent repeatability, meeting automated assembly requirements.

사례 2: Carton Sealing Station of Packaging Machine

애플리케이션: Folding carton top flaps and tape sealing

구성: Two CDG1BN20-300 cylinders working synchronously for dual-side flap folding

효과: Adjustable speed, reliable cushioning, low noise and higher sealing efficiency.

사례 3: Automotive Parts Inspection Equipment

애플리케이션: Clamping and positioning for dimensional inspection of parts

구성: CDG1BN20-300 + precision pressure regulator for flexible clamping

효과: No workpiece damage, stable clamping force and accurate inspection data.

선택 지침 & 빠른 규칙
내경 사이즈: Select by figures (20/25/32/40/50/63/80/100 mm); Calculate output force based on load.
뇌졸중: Standard range 50~1000 mm; Custom strokes are available.
장착 유형: Recognized by letters: B=Basic, F=Flange, K=Foot, T=Trunnion.
Cushion type: Recognized by suffix: N=Rubber cushion, A=Adjustable air cushion.
Magnet ring: CDG1 = With built-in magnet ring; CG1 = Without magnet ring.
교체 규칙: Bore, 뇌졸중, mounting style and cushion type must be identical.