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Complete Guide
Custom Grinders Compared: Metal vs. Hemp vs. Acrylic
A side-by-side breakdown of every custom grinder material, size and format - so you can choose the right branded grinder for your dispensary, cannabis brand, or next promotional campaign.
Custom branded grinders are one of the most effective cannabis promotional products available. Unlike a lighter that eventually runs out or a rolling paper that gets used once, a quality grinder stays in a customer's rotation for years — putting your logo in front of them every single session. The material you choose shapes the perceived value, the brand story, and the per-unit cost.
This guide covers all custom grinder options available through Cannabis Promotions: metal grinders in three sizes (40mm, 50mm, 63mm), biodegradable hemp plastic grinders, acrylic grinders, and the stainless steel grinder card.
Metal · 40mm Compact · 4-piece Metal · 50mm Most popular Metal · 63mm Large · 4-piece Hemp Plastic Biodegradable Acrylic Budget-friendly 
Grinder Card Wallet-size Quick Comparison Table
| Grinder | Material | Pieces | Size | Kief Catcher | Imprint | Best For |
|---|---|---|---|---|---|---|
| Metal – 40mm | Metal alloy | 4-piece | 1.5" × 1.3" H | Yes | Full color or laser etch | Travel · pocket carry |
| Metal – 50mm | Metal alloy | 4-piece | 2" × 1.4" H | Yes | Full color or laser etch | Everyday use · retail merch |
| Metal – 63mm | Metal alloy | 4-piece | 2.5" × 1.7" H | Yes | Full color or laser etch | Group sessions · VIP gifts |
| Hemp Plastic | Biodegradable hemp | 2-piece | 55mm (2.17") | No | Full color or eco sticker | Eco brands · sustainability |
| Acrylic | Acrylic plastic | 2–3 piece | Standard | No | Full color logo | Bulk giveaways · events |
| Grinder Card | Stainless steel | 1-piece | 3.4" × 2.1" | No | Full color (+ back/sleeve) | Wallet merch · business cards |
Custom Metal Grinders
Metal grinders are the premium choice — and the most popular across the entire grinder lineup. All three metal sizes are 4-piece designs featuring razor-sharp grinding teeth, a mesh screen, a magnetic closure lid, and a dedicated kief catcher in the bottom chamber. The heavy-duty metal alloy construction means customers keep and use these for years, not months.
Imprint options are full-color direct print or laser engraving on the lid. Laser engraving produces a precise, permanent metallic-white mark that never fades or chips. Full-color print puts your entire logo in vivid color on the cap. Both options are included in standard pricing.
Available in black and white stock colors. Lead time is 3–5 business days for standard orders.
Three Sizes — Which One Is Right?
40mm — Most Compact 1.5" × 1.3" H · Smallest and lightest. Fits easily in a pocket or purse. Ideal for on-the-go consumers and travel kits. 50mm — Most Popular 2" × 1.4" H · The sweet spot. Comfortable to grip, large enough for a full session, small enough for everyday carry. 63mm — Largest 2.5" × 1.7" H · Maximum capacity. Best for group sessions, bulk grinding, and VIP gift sets where the grinder is the centerpiece. Custom Hemp Plastic Grinders
The custom hemp plastic grinder is made from biodegradable hemp fibers — no metal, no synthetic plastic, no magnets, no paint. It breaks down naturally at end of life and can be composted, making it the only truly zero-waste grinder option in the lineup. At 55mm diameter (2.17"), it's a compact 2-piece design that delivers consistent grinding performance from a plant-based material.
Logos can be applied with UV printing directly on the hemp surface or via recycled paper stickers using eco-friendly inks. For dispensaries and brands that have made sustainability commitments, the hemp grinder backs up that positioning with a product that is genuinely aligned with those values.
Hemp grinders are one of the most budget-friendly options in the lineup, making them viable for higher-volume giveaway campaigns without sacrificing the eco story.
Custom Acrylic Grinders
Custom acrylic grinders are the most affordable entry point in the grinder category — the right choice when volume is high and per-unit cost is the primary consideration. Acrylic grinders deliver reliable 2–3 piece grinding performance in a lightweight, durable package, available in multiple body colors with full-color logo printing.
Acrylic has high weather resistance, won't fade or yellow over time, and transparent material options let customers see the ground herbs as they work. For dispensary grand openings, cannabis trade shows, 420 events, and large-scale giveaway campaigns, acrylic grinders deliver branded value at a price point that makes wide distribution practical.
Custom Grinder Card
The custom grinder card is a flat stainless steel grater that fits in a wallet or purse — 3.4" × 2.1", the same footprint as a standard business card. A paper sleeve stores excess ground material. Full-color logo is printed on one side, with the option to print the back or sleeve for an additional charge.
The grinder card is the most compact, most portable grinder available, and it doubles as a branded item that customers actually keep and carry. It's an excellent add-on in a dispensary gift pack, a conversation starter at trade shows, and a memorable alternative to standard business cards for cannabis industry professionals.
Lead time is 3–5 business days, making it one of the faster custom grinder options available.
How to Decide: A Quick Framework
1. What's the goal? High-volume giveaway → Acrylic or Hemp. Dispensary retail or merch kit → Metal 50mm. Premium gift or VIP reward → Metal 63mm or laser-engraved. Eco campaign → Hemp. Unique conversation-starter → Grinder Card.
2. What's the brand story? Sustainability-first → Hemp. Premium quality → Metal with laser engraving. Accessible everyday value → Acrylic or Metal 40mm. Innovative and memorable → Grinder Card.
3. What size fits your audience? Everyday consumers on the go → 40mm. General dispensary customers → 50mm. Enthusiasts, group smokers, collectors → 63mm. Always-in-pocket portability → Grinder Card.
Shop All Custom Grinders
Metal – 40mm 4-piece · compact Metal – 50mm 4-piece · most popular White Metal – 50mm Best logo pop Metal – 63mm 4-piece · large Hemp Grinder Biodegradable Acrylic Grinder Budget giveaways Grinder Card Stainless · wallet-size Not Sure Which Grinder Is Right?
Our team can help you choose the best material, size, and imprint option for your budget and goals. Request a free mockup to see your logo on any grinder before you order.
Request a Free MockupFAQ
What is the most popular custom grinder for dispensaries?
The 50mm 4-piece metal grinder is the most popular option. It hits the right balance of size, quality, and perceived value — compact enough for everyday carry, large enough for a full session, and premium enough to sit on a dispensary retail shelf or go into a gift set.
What's the difference between full-color print and laser engraving on metal grinders?
Full-color print reproduces your logo in vivid color directly on the metal lid — ideal for detailed logos and multi-color artwork. Laser engraving burns a permanent mark into the metal surface, producing a precise metallic-white finish that never fades, chips, or wears off with daily use. Both options are available at standard lead times.
What is a 4-piece grinder and why does it matter?
A 4-piece grinder has four components: a lid with teeth, a grinding chamber, a mesh screen, and a bottom kief catcher. The screen filters fine trichome crystals (kief) into the bottom chamber where they collect separately — a genuine functional upgrade that cannabis consumers value. All three metal grinder sizes are 4-piece. Acrylic and hemp grinders are 2–3 piece without a kief catcher.
Are hemp grinders as functional as metal grinders?
Hemp grinders deliver consistent grinding performance for everyday use. They are not as hard or as long-lasting as metal grinders, and they don't have a kief catcher. For brands where the eco story is the priority, hemp grinders are a strong and genuine choice.
What's the best grinder for a high-volume event giveaway?
Acrylic and hemp grinders are the most budget-friendly options for bulk event giveaways. Both deliver functional grinding performance, full-color custom branding, and a per-unit cost that makes ordering in quantity practical. For slightly higher perceived value, the 40mm metal grinder is a strong option.
Can I order multiple grinder sizes in one order?
Yes. You can mix sizes and materials in a single order. Contact us and we can set up a combined order with the right quantities of each.
What other products pair well with custom grinders?
Grinders pair naturally with custom rolling trays, branded rolling papers, and custom lighters for a complete branded rolling kit.
