Self-Inking Plastic Stamp Round 42mm Pr42A with dual Pad (office supplier/plastic injection/printer)
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Product Highlights
- Dual-Pad Patent System: Patented reversible pad allows seamless switching between two ink colors without replacing the pad.
- Customizable Color & Logo: Stamp housing color and logo can be customized according to specific customer requirements.
- Self-Inking Mechanism: Automatically re-inks after each press, ensuring consistent, crisp prints without manual application.
- Eco-Friendly Refillable Ink: Uses water-based, non-toxic ink that is fast-drying, vibrant, and easily refillable or replaceable.
- Durable Plastic Construction: High-quality plastic body with transparent base for visibility, resistant to wear and deformation.
- Versatile Application: Ideal for office approvals, education feedback, business labels, and creative DIY projects.
- Strong Technical Capability: Factory has hundreds of molds and strong technical ability to produce stamps with large difficulty coefficients.
- Cost-Effective Solution: Price advantage with perfect after-sales service and long-lasting use due to replaceable pads.
Product Attributes
- Customization
- Available
- Color
- Black, Yellow, Red, Blue, Pink and Customized Colo
- Material
- Plastic
- Model NO.
- A Series
- Shape
- Rectangular,
- Color of Stamp Housing
- Can Be Customized According to Your Requirement
- Type
- Self-Inking Stamp
- Logo
- Can Be Printed with Your Logo
- Ink
- with or Without
- Transport Package
- Carton Box
- Specification
- 50 ps per box
- Trademark
- Rainbow
- Origin
- China
- HS Code
- 96110000
- Production Capacity
- 100000000000 PS/Year
- Package Size
- 51.00cm * 40.00cm * 40.00cm
- Package Gross Weight
- 12.600kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Self-Inking Plastic Stamp Round 42mm Pr42A with dual Pad (office supplier/plastic injection/printer)
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Product Description
Self-Inking stamps with reversible pad
♥ The Rainbow self-inking stamps feature:
The Rainbow self ink back printing is durable using. With different stamp pads, one stamp can cover different colors. After the ink is used up, you only need to replace the ink pad or add ink, which will allow you to complete tens of thousands of perfect stamps. The imprint is quick-drying and clear, and the seal font is never deformed. Mainly through the established route in the seal shell, let the seal face contact the printing table in the shell to absorb the ink and print the pattern. The ink in the pad can be added or replaced by itself. In order to achieve environmental protection and durability.
♥ The Rainbow self-inking stamps advantage:
★ 1.The Rainbow self-inking stamps has a price advantage, perfect after-sales service can solve the problems encountered by customers in the first time.
★ 2. The double printing pad (one side red and one side blue) is our patent, customers can change the color according to their requests.
★ 3. We have many product specifications, our factory has hundreds of molds.
★ 4. The Rainbow has strong technical ability and can produce many stamps with large difficulty coefficients.
★ 5. The Rainbow can be customized according to customer requirements of the stamps.
MaxStamp PR42A Self-Inking Stamp (Dual Pad, 42mm Round)
Product Features & Attributes
Design & Size: Compact, ergonomic red body with a transparent base for visibility. The 42mm round stamping surface ensures bold, clear impressions.
Dual-Pad System: Built-in dual ink pads (typically black + red, or customizable) allow seamless switching between ink colors without replacing the pad-ideal for multi-color stamping needs.
Self-Inking Mechanism: Automatically re-inks after each press, eliminating manual ink application. Ensures consistent, crisp prints every time.
Durable Build: High-quality plastic construction resists wear, while the transparent base lets you monitor ink levels easily.
Easy Assembly: Detachable black lid (shown) allows quick pad replacement or customization, extending the stamp's lifespan.
Uses & Applications
-
Office Work: Approval stamps (e.g., "Approved," "Paid"), date/time stamps, document authentication, or departmental labels.
-
Education: Teacher feedback stamps ("Excellent," "Needs Revision"), student ID/achievement badges.
-
Business & E-commerce: Packaging labels, invoice validation, return authorization, or brand logo stamps.
-
Creative Projects: DIY crafts, scrapbooking, or personalized gift tags.
"MaxStamp PR42A: Double the Color, Double the Efficiency! 42mm Bold Impressions, Zero Hassle-Your All-in-One Self-Inking Solution!"
(Alternative punchy tagline: "Stamp Smarter, Not Harder! MaxStamp PR42A: Dual-Pad Power, 42mm Clarity, Endless Possibilities.")
Why Choose It?
-
Time-Saving: Self-inking = no more messy ink pads or uneven prints.
-
Versatile: Dual-pad + 42mm size = adapts to office, school, or business needs.
-
Durable & Cost-Effective: Replaceable pads = long-lasting use without frequent replacements.
Make every stamp count-with MaxStamp PR42A, efficiency meets precision!
Above stamp is model no. PR42A (A42) or 42AD(A42D) self-inking plastic stamp with size of imprint Φ 42mm.
| The following are the ink used specifically for ink return printing that matches this series |
MaxStamp Water Based 15CC/30CC Noris Ink - Vibrant, Fast-Drying, Refill for Self-Inking Stamps (Multiple Colors)

★Water-Based Formula: Safe, non-toxic, and eco-friendly. Dries fast to prevent smudges on paper, cards, or documents.
★Vibrant Color Options: Available in Black, Red, Blue, Green, Purple-perfect for customizing stamps (logos, dates, signatures, labels).
★German Quality Ink: Formulated for sharp, crisp impressions every time. Compatible with MaxStamp self-inking stamps (and most water-based stamp pads).
★Easy to Refill: Precision nozzle ensures mess-free, controlled ink flow. No spills-even for beginners!
★Durable & Long-Lasting: High-quality ink resists fading and maintains bold color, even after repeated use.

Important:
★★★We can produce the die mold according to your required imprinting inforamtion for mass production.★★★
The estimated regular packaging information is as below:
| Self inking stamp with dual pad(Rectangular) | |||||
| No. | Model No. | Printing size(mm) | pcs per carton | Carton | G/W(kgs) |
| 1 | PS510 (SI-510) | 10*5 | 600 | 310*280*350 | 14KG |
| 2 | PS814 (SI-713) | 14*8 | 600 | 375*375*340 | 10.4 |
| 3 | PS915A (A915) | 15*9 | 400 | 400*260*440 | 10.4 |
| 4 | PS716A (A5100) | 16*7 | 720 | 565*265*300 | 17.4 |
| 5 | PS1226A (A1226) | 26*12 | 240 | 390*360*460 | 12.7 |
| 6 | PS1528 (S161P) | 28*15 | 320 | 420*305*410 | 10.3 |
| 7 | PS830 (SI-5200) | 30*8 | 480 | 410*380*350 | |
| 8 | PS2030A (A2030) | 30*20 | 200 | 440*250*525 | 14 |
| 9 | PS1438A (ACSI-10) | 38*14 | 200 | 400*280*475 | 12.4 |
| 10 | PS1539A (A1539) | 39*15 | 200 | 410*310*600 | 15.2 |
| 11 | PS1641A (A500) | 41*16 | 120 | 460*320*390 | 10.5 |
| 12 | PS1848A (A1848) | 48*18 | 160 | 430*350*440 | 16.8 |
| 13 | PS1050A (A1050) | 50*10 | 160 | 400*350*420 | 12.5 |
| 14 | PS1454 (SI-1.3) | 54*14 | 240 | 490*370*400 | 16kg |
| 15 | PS2359A (A2359) | 59*23 | 120 | 470*410*390 | 15.6 |
| 16 | PS2066A (A2066) | 66*20 | 160 | 430*420*520 | 18.9 |
| 17 | PS1069A (A1069) | 69*10 | 180 | 540*440*345 | 16.2 |
| 18 | PS1776A (A1776) | 76*17 | 120 | 470*410*390 | 13.9 |
| 19 | PS3035A (A3035) | 35*30 | 120 | 550*280*375 | 14.2 |
| 20 | PS3040A (A3040) | 40*30 | 120 | 465*285*520 | 14.6 |
| 21 | PS2444A (A5260P) | 44*24 | 120 | 505*335*435 | 13.5 |
| 22 | PS3045 (SI-3045) | 45*30 | |||
| 23 | PS3050A (A3050) | 50*30 | 120 | 560*360*450 | 16 |
| 24 | PS4050 (SI-4050) | 50*40 | |||
| 25 | PS3255 (SI-3255) | 55*32 | 120 | 590*390*410 | 17kg |
| 26 | PS3360A (A3360) | 60*33 | 120 | 590*400*480 | 19.3 |
| 27 | PS4060A (A4060) | 60*40 | 60 | 420*340*510 | 11.5 |
| 28 | PS2565A (A2565) | 65*25 | 120 | 460*440*405 | 16 |
| 29 | PS3068A (A3068) | 68*30 | 120 | 540*430*370 | |
| 30 | PS4078A (A4078) | 78*40 | 60 | 500*340*450 | 12.8 |
| 31 | PS2582A (A2582) | 82*25 | 80 | 510*490*280 | 13.2 |
| Self inking stamp with dual pad(Square) | |||||
| No. | Model No. | Printing size(mm) | pcs per carton | Carton | G/W(kgs) |
| 47 | PS1212 (5205) | 12*12 | 600 | 560*320*270 | 16.3 |
| 48 | PS1515A (A1515) | 15*15 | 360 | 540*390*345 | 15 |
| 49 | PS1616 (M17Q) | 16*16 | 320 | 420*380*420 | 12 |
| 50 | PS2020A (A5210) | 20*20 | 240 | 390*390*345 | 14 |
| 51 | PS2222A (A2222) | 22*22 | 240 | 460*400*360 | 14.7 |
| 52 | PS2525A (A5215) | 25*25 | 180 | 390*390*345 | 12.9 |
| 53 | PS3030A (A5280) | 30*30 | 120 | 395*300*600 | 13.9 |
| 54 | PS3333 (5285) | 33*33 | 150 | 483*372*372 | 13.6 |
| 55 | PS3535 (SI-5290) | 35*35 | 120 | 580*310*360 | 12.6 |
| 56 | PS4242A (A5230) | 42*42 | 90 | 465*355*510 | 15.9 |
| No. | Model No. | Size(mm) | color box per white box | white box per shipping carton | total product qty per shipping carton | Shipping Carton Size | G/W per shipping carton(kgs) |
| (LmmxWmmxHmm) | |||||||
| 32 | PR12A (A-12) | Round 12mm | 10 | 60 | 600 | 450*340*380 | 10.6 |
| 33 | PR17A (A-17) | Round 17mm | 10 | 36 | 360 | 555*360*345 | 13.5 |
| 34 | PR24A (A-24) | Round 24mm | 10 | 24 | 240 | 510*375*420 | 13.5 |
| 35 | PR30A(A-30) | Round 30mm | 10 | 9 | 90 | 405*320*360 | 8.5 |
| 36 | PR36A (A-36) | Round 36mm | 10 | 9 | 90 | 435*345*375 | 10 |
| 37 | PR38A (A-38) | Round 38mm | 10 | 9 | 90 | 480*365*390 | 11 |
| 38 | PR40A (A-40) | Round 40mm | 10 | 9 | 90 | 510*405*405 | 12.6 |
| 39 | PR42A (A-42) | Round 42mm | 10 | 9 | 90 | 510*405*405 | 13.2 |
| 40 | PR45A (A-45) | Round 45mm | 10 | 9 | 90 | 510*405*405 | 14.3 |
| 41 | PR50A (A-50) | Round 50mm | 10 | 6 | 60 | 510*405*370 | 10 |


★The goods can be delivered to you by courier (FedEx,DHL, or UPS), or by air freight or by sea freight.
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASR2341577". Items marked "" are certified.
Company Profile
We are an experienced manufacturer specializing in injection molding products and metal products. We have many professional production equipment such as injection molding machines, CNC, milling machines, punches, and high-precision testing equipment(developed and designed by ourselves). In order to export our produced mature measuring tools spirit level products (with about 30 years of production experience), as well as plastic accessories water bubble and other plastic products, we set up a new company with import and export rights in 2019, Shanghai Rainbow Industry and Trade Co., Ltd.
We have a professional engineer production team, a research and development design team (composed of professors from China's famous Shanghai University and their graduate students), a QC quality control team, and a professional sales service team (bachelor degree or above).
In the next few years, we will set up a new technology company.
Our company's philosophy is to provide overseas customers with satisfactory products and after-sales services, and to become a reliable partner satisfied by overseas customers in China.
Our company's purpose is to work together with customers, win-win cooperation.
About Our Factory & Business Background
- Address
- Building 8, 1481 Cheting Road, Yexie Town, Songjiang District,201609, Shanghai, China
- Terms of Payment
- T/T, PayPal
- International Commercial Terms(Incoterms)
- FOB, EXW, CFR, CIF, DDP, DAP
- Average Lead Time
-
Peak Season Lead Time: 1-3 months
Off Season Lead Time: one month - Nearest Port
- Shanghai Port, Ningbo Port
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2008-01-01
- Main Markets
- North America, Eastern Europe, Africa
FAQ
- Can the color box be customized?
- Yes, the color box can be customized for you.
- Is the logo customizable?
- Yes, the logo can be customized.
- How many colors can one stamp cover?
- With different stamp pads, one stamp can cover different colors. The dual pad allows flipping to double the impressions.
- How do I change the ink pad?
- Push in the stamp base and press red buttons to lock. Push the ink pad out from the back, grasp by edges, pull out, flip it over, and reinsert. Push the base in to unlock.
- What is the lead time for production?
- Peak season lead time is 1-3 months, while off-season lead time is one month.
- What payment terms are accepted?
- We accept T/T and PayPal.
- Can you produce custom die molds?
- Yes, we can produce the die mold according to your required imprinting information for mass production.
- What shipping methods are available?
- Goods can be delivered by courier (FedEx, DHL, or UPS), air freight, or sea freight.
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