TL;DR — Custom Grinder Supplier Comparison
| Factor | GMI Custom Grinders | MunchMakers | SmokePromos |
|---|---|---|---|
| Manufacturing | Machines in-house from raw 6061 aluminium | Imports from China, decorates stock | Imports from China, decorates stock |
| Logo method | Laser engraved 3D into metal (rose gold, silver, black, gold) | Surface print / etch | Surface print / etch |
| Minimum order | None (1 unit) | ~25 standard; 6 on some promo | 50 standard; 30 on some lines |
| Entry cost (first order) | $50 (single 2-part) | ~$450 (25 units) | ~$475 + $40 setup fee |
| Volume pricing (2-part) | $50 (1) → $5.99 (500–999) | Not public | $9.50 (50–199) |
| Volume pricing (4-part) | $75 (1) → $7.99 (500–999) | Not public | ~$12–15 (50+) |
| Proof process | In-browser, instant preview | Free digital mockup (email) | Emailed proof |
| Custom scraper | Included, matching design | Add-on | Plain included |
| Custom box | Free on 100+ units | Add-on | Add-on |
| Lead time (proof to ship) | 10–20 days production + 15–20 days shipping | Not published | Not published |
Why This Table Matters
One question decides everything: manufacturer or importer?
- GMI manufactures. Each grinder CNC-machined in-house from 6061-T6 aluminium. Your logo is laser engraved 3D into the metal — permanent, tactile, in your chosen finish.
- MunchMakers imports. Buys from China, applies surface decoration, marks up. Recognizable name, but the recognition is *their* brand, not yours.
- SmokePromos imports. Same model. Stock grinder + surface decoration.
Full Volume Pricing Comparison (2-Part Grinders)
| Quantity | GMI Custom Grinders | MunchMakers | SmokePromos |
|---|---|---|---|
| 1 unit | $50.00 | Not available | Not available |
| 10 units | $29.99 | Not available | Not available |
| 25 units | $19.99 | ~$18.00 | Not available |
| 50 units | $14.99 | ~$16.00 | $9.50 |
| 100 units | $11.99 | ~$14.00 | $8.75 |
| 250 units | $8.99 | ~$12.00 | $7.95 |
| 500–999 units | $5.99 | ~$10.00 | ~$7.00 |
| 1,000+ units | Contact for quote | Contact | Contact |
*MunchMakers and SmokePromos pricing estimated from public tiers at time of writing. GMI pricing is public and self-serve at gmigrinders.com/shop.*
Full Volume Pricing Comparison (4-Part Grinders)
| Quantity | GMI Custom Grinders | MunchMakers | SmokePromos |
|---|---|---|---|
| 1 unit | $75.00 | Not available | Not available |
| 10 units | $49.99 | Not available | Not available |
| 25 units | $34.99 | Not available | Not available |
| 50 units | $24.99 | Not available | ~$12.00 |
| 100 units | $19.99 | Not available | ~$11.00 |
| 250 units | $14.99 | Not available | ~$10.00 |
| 500–999 units | $7.99 | Not available | ~$9.00 |
| 1,000+ units | Contact for quote | Contact | Contact |
Branding Method: What Your Customer Actually Touches
| Supplier | Method | Finishes | Durability | Feel |
|---|---|---|---|---|
| GMI | Laser engraved 3D into metal | Rose gold, silver, black, gold | Permanent — part of the metal | Tactile, premium, catches light |
| MunchMakers | UV print / surface etch / anodize | Print colors | Fades with daily use | Flat, surface-level |
| SmokePromos | Surface etch / print | Print colors | Fades with daily use | Flat, surface-level |
3D engraving = your logo becomes the metal. Surface print = your logo sits on top.
What's Included Free (Per Order)
| Item | GMI | MunchMakers | SmokePromos |
|---|---|---|---|
| Custom scraper (matching design) | ✅ Yes | ❌ Add-on | ⚠️ Plain only |
| Custom box | ✅ Free on 100+ | ❌ Add-on | ❌ Add-on |
| Design proof | ✅ In-browser, instant | ✅ Free mockup (email) | ✅ Emailed proof |
| Setup fee | $0 | $0 (varies) | $40 per new design |
Proof & Order Flow
| Step | GMI | MunchMakers | SmokePromos |
|---|---|---|---|
| 1. Upload logo | In-browser customizer | Email artwork | Email artwork |
| 2. See preview | Instant, live on lid | Mockup emailed | Mockup emailed |
| 3. Choose finish | 4 options (RG/Silver/Black/Gold) | Limited by stock | Limited by stock |
| 4. Approve proof | Click to approve | Email reply | Email reply |
| 5. Pay | After approval | After approval | After approval |
| 6. Production starts | Immediately | After approval | After approval |
The Bottom Line
If you want an importer → MunchMakers or SmokePromos will sell you a China-sourced grinder with surface decoration. You pay their markup. The logo fades. The product is not yours.
If you want a manufacturer → GMI machines every grinder in-house. Your design is laser engraved 3D in the finish you choose. No minimum. Public pricing. Proof before pay. The grinder *is* your brand.
Start with one. Order a single GMI grinder with your logo at gmigrinders.com/shop. Validate demand. Then scale at volume pricing.
Sources
All competitor figures from publicly listed custom-grinder programs at time of writing (2026):
- MunchMakers: munchmakers.com/product-category/custom-grinders
- SmokePromos: smokepromos.com/shop/four-piece-cannabis-grinders
- GMI: gmigrinders.com/shop (live, self-serve)
FAQ
Which custom grinder supplier actually manufactures the grinders?
GMI. We machine each grinder in our own facility from raw aircraft-grade aluminium. MunchMakers and SmokePromos source their grinders from China and decorate the stock product.
Which custom grinder supplier has the lowest minimum order?
GMI has no minimum order, so a single unit is enough. MunchMakers starts around 25 units standard, with some promo styles as low as 6. SmokePromos starts at 50 units standard, with 30 on some lines.
How is the GMI logo applied?
Your design is laser engraved 3D onto the metal, in the finish of your choice: rose gold, silver, black, or gold. It becomes part of the grinder and does not fade, peel, or wear off.
Do MunchMakers or SmokePromos offer 3D metal engraving?
Neither offers a laser-engraved 3D finish on its grinders. Both use surface decoration such as etching or print. GMI engraves your design 3D in the finish you choose.
What is the cheapest way to start with a custom grinder?
A single no-minimum order is the cheapest entry: GMI starts at $50 for one grinder. A standard first order with MunchMakers costs about $450, and with SmokePromos about $475 plus a $40 setup fee.
Is the scraper and box included, or an add-on?
The answer varies by supplier. GMI includes a matching custom scraper and a free box on orders of 100 units or more. SmokePromos includes a plain scraper. MunchMakers treats the scraper and box as add-ons.
